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Hello,
i have some issues wth the M300 Base Station and M25.

The M300 is connected our LAN wich is part of a MPLS Network.
There are 2 Firewalls betewen M300 and Internet (no outgoing blocks).
We drive our own SBC with some Sip Accounts in Azure cloud, where the M300 can register there extensions.
I can register several extensions and can see the registration on the SBC.
Some times Incomming and outgoing calls calls are possible, some times not, but there is no understandable reason.

both M300 and M25 have 530.2 Firmware.

I might need some support here to get the devices working.

Best regards

profilePicture

Christian Schurig

End user

Joined: 14.04.2022

10 Comments

  1. Snom Federico Rossi

    Hi,

    we need to check M300 sip log and syslog to try to understand what's happening. Could you post the files taken after a non-working call?

    In my experience, sip traffic is very likely to be blocked.

    Do firewalls have any active sip alg?


  2. End user Christian Schurig

    Hello,

    thanks for this fast response.

    Logfile entries with IP adresses and domainnames have been anonymiesed because of security reasons.
    If you need real values for analyses, I have to send this in a more private way.


    And there are no SIP rules in FW.

    Other SIP devices in our Network already working with an other SIP Provider. So I assume thats not the issue.


    Thanks a lot

    Christian Schurig


    SIP LOG, last entry after not working outgoing call.


    Sent to tcp:"SBC external IP":5060 at 19/04/2022 16:36:17  (1050 bytes)

    INVITE sip:+4917xxxxxxxx@"sbc.domain.com":5060;user=phone SIP/2.0
    Via: SIP/2.0/TCP internal IP:52067;branch=z9hG4bKljrmn98.ikfurrpx2y7oclprn1e.we9
    Max-Forwards: 70
    From: "Be Lab 65" <sip:+49"sip extension"@"sbc.domain.com":5060;transport=TCP>;tag=8cwzjhff8it
    To: <sip:+4917xxxxxxxx@sbc.domain.com:5060;user=phone>
    Call-ID: meqi5cj5xe6cenbhek.@"sbc.domain.com"
    CSeq: 40171 INVITE
    Contact: <sip:+49internal sip extension@internal IP:52067;transport=TCP;line=16546>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Content-Disposition: session
    Min-SE: 90
    Session-Expires: 3600
    Supported: replaces,100rel,timer
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Type: application/sdp
    Content-Length: 255

    v=0
    o=+49"sip extension" 915882401 915882401 IN IP4 "internal IP"
    s=-
    c=IN IP4 "Internal IP"
    t=0 0
    m=audio 50010 RTP/AVP 8 101
    a=rtpmap:8 PCMA/8000
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    a=ptime:20
    a=maxptime:80
    a=sendrecv
    a=rtcp:50011


    Syslog:

    loc3 .Info  2022-04-19T16:01:49Z 235-[ FpCtrlResetHandler CRE AC#1:0 RP#0 HR#0] 

    loc0 .Info  2022-04-19T16:01:49Z 235-[ RSSI report HS:+49xxx65 PMID:00003 RPN:00 dBm:-36] 

    loc0 .Info  2022-04-19T16:01:49Z 235-[ PMID:00003 Battery Level: 99] 

    loc7 .Info  2022-04-19T16:01:54Z 235-[ Call Release user +49xxx65 Duration: 00:00:05] 

    loc3 .Info  2022-04-19T16:01:54Z 235-[ FpCtrlResetHandler PR#713 AC#1:0 RP#0 HR#0] 

    loc3 .Info  2022-04-19T16:01:54Z 235-[ FpCtrlResetHandler TER AC#0:0 RP#0 HR#0] 

    loc7 .Info  2022-04-19T16:01:54Z 235-[ DECT MAC statistics: Pmid:00003 Typ:FN Res:0 Frames:541,3,0 Bho:0,0 Rssi:59] 

    loc7 .Info  2022-04-19T16:02:46Z 235-[ Call Outgoing user +49xxx65] 

    loc3 .Info  2022-04-19T16:02:46Z 235-[ FpCtrlResetHandler PR#712 AC#0:0 RP#0 HR#0] 

    loc3 .Info  2022-04-19T16:02:46Z 235-[ FpCtrlResetHandler CRE AC#1:0 RP#0 HR#0] 

    loc0 .Info  2022-04-19T16:02:46Z 235-[ RSSI report HS:+49xxx65 PMID:00003 RPN:00 dBm:-28] 

    loc0 .Info  2022-04-19T16:02:46Z 235-[ PMID:00003 Battery Level: 99] 

    loc7 .Info  2022-04-19T16:02:51Z 235-[ Call Release user +49xxx65 Duration: 00:00:05] 

    loc3 .Info  2022-04-19T16:02:51Z 235-[ FpCtrlResetHandler PR#713 AC#1:0 RP#0 HR#0] 

    loc3 .Info  2022-04-19T16:02:51Z 235-[ FpCtrlResetHandler TER AC#0:0 RP#0 HR#0] 

    loc7 .Info  2022-04-19T16:02:51Z 235-[ DECT MAC statistics: Pmid:00003 Typ:FN Res:0 Frames:540,3,0 Bho:0,0 Rssi:58] 

    loc7 .Info  2022-04-19T16:17:26Z 235-[ Roaming of user +49xxx65 on AppId#00, ExtIdx#0002] 

    loc7 .Info  2022-04-19T16:17:26Z 235-[ Roaming of user +49xxx66 on AppId#01, ExtIdx#0000] 

    loc7 .Info  2022-04-19T16:17:26Z 235-[ Roaming of user +49xxx01 on AppId#02, ExtIdx#0001] 

    loc3 .Info  2022-04-19T16:17:31Z 235-[ Registration of user +49xxx65 (ExtIdx#0002) on domain sbc01:5060 succeeded] 

    loc7 .Info  2022-04-19T16:17:31Z 235-[ updateRegistrationGroupCall all god for SipExtId #2 Used for PP's: #4] 

    loc3 .Info  2022-04-19T16:17:32Z 235-[ Registration of user +49xxx66 (ExtIdx#0000) on domain sbc01:5060 succeeded] 

    loc7 .Info  2022-04-19T16:17:32Z 235-[ updateRegistrationGroupCall all god for SipExtId #0 Used for PP's: #1] 

    loc3 .Info  2022-04-19T16:17:32Z 235-[ Registration of user +49xxx01 (ExtIdx#0001) on domain sbc01:5060 succeeded] 

    loc7 .Info  2022-04-19T16:17:32Z 235-[ updateRegistrationGroupCall all god for SipExtId #1 Used for PP's: #2] 

    clk  .Info  2022-04-19T16:28:36Z 235-[ UTC time set initiated by SNTP (1650378516 s)] 

    clk  .Info  2022-04-19T16:28:36Z 235-[ Local time set (2022-04-19 16:28:36)] 

    loc3 .Info  2022-04-19T16:28:36Z 235-[ Time and Date and DST Broadcast to handsets] 

    loc7 .Info  2022-04-19T16:36:17Z 235-[ Call Outgoing user +49xxx65] 

    loc3 .Info  2022-04-19T16:36:17Z 235-[ FpCtrlResetHandler PR#712 AC#0:0 RP#0 HR#0] 

    loc3 .Info  2022-04-19T16:36:17Z 235-[ FpCtrlResetHandler CRE AC#1:0 RP#0 HR#0] 

    loc0 .Info  2022-04-19T16:36:18Z 235-[ RSSI report HS:+49xxx65 PMID:00003 RPN:00 dBm:-40] 

    loc0 .Info  2022-04-19T16:36:18Z 235-[ PMID:00003 Battery Level: 98] 

    loc7 .Info  2022-04-19T16:36:22Z 235-[ Call Release user +49xxx65 Duration: 00:00:05] 

    loc3 .Info  2022-04-19T16:36:22Z 235-[ FpCtrlResetHandler PR#713 AC#1:0 RP#0 HR#0] 

    loc3 .Info  2022-04-19T16:36:22Z 235-[ FpCtrlResetHandler TER AC#0:0 RP#0 HR#0] 

    loc7 .Info  2022-04-19T16:36:23Z 235-[ DECT MAC statistics: Pmid:00003 Typ:FN Res:0 Frames:540,3,0 Bho:0,0 Rssi:59] 

  3. Snom Federico Rossi

    Hi,

    if there is only the INVITE in the SIP log, it means the M300 does not receive any response from the PBX. You must check the network.

  4. End user Christian Schurig

    Hello, I have a reproducible event

    Reboot Basstation: all Devices regsitrated.Incomming and outgoing calls possible.
    A few minutes later, even incomming and outgoing calls not possible anymore.


    SIP Log:

    Sent to udp:224.0.1.75:5060 at 19/04/2022 19:15:07  (686 bytes)

    SUBSCRIBE sip:MAC%3a00041362B6B5@224.0.1.75 SIP/2.0
    Via: SIP/2.0/UDP Internal IP;branch=z9hG4bK3gw3f5w9oxpqeqmwvz9
    Max-Forwards: 70
    From: <sip:PIA512@Internal IP>;tag=3.d9r
    To: <sip:MAC%3a00041362B6B5@224.0.1.75>
    Call-ID: ebzpj9dh5@Internal IP
    CSeq: 62691 SUBSCRIBE
    Contact: <sip:PIA512@Internal IP>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Allow-Events: dialog,message-summary
    Event: ua-profile;profile-type="device";vendor="snom";model="snomM300";version="05.30.0002"
    Expires: 0
    Supported: replaces,100rel
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    Sent to udp:224.0.1.75:5060 at 19/04/2022 19:15:07  (686 bytes)

    SUBSCRIBE sip:MAC%3a00041362B6B5@224.0.1.75 SIP/2.0
    Via: SIP/2.0/UDP Internal IP;branch=z9hG4bK3gw3f5w9oxpqeqmwvz9
    Max-Forwards: 70
    From: <sip:PIA512@Internal IP>;tag=3.d9r
    To: <sip:MAC%3a00041362B6B5@224.0.1.75>
    Call-ID: ebzpj9dh5@Internal IP
    CSeq: 62691 SUBSCRIBE
    Contact: <sip:PIA512@Internal IP>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Allow-Events: dialog,message-summary
    Event: ua-profile;profile-type="device";vendor="snom";model="snomM300";version="05.30.0002"
    Expires: 0
    Supported: replaces,100rel
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    Sent to udp:224.0.1.75:5060 at 19/04/2022 19:15:08  (686 bytes)

    SUBSCRIBE sip:MAC%3a00041362B6B5@224.0.1.75 SIP/2.0
    Via: SIP/2.0/UDP Internal IP;branch=z9hG4bK3gw3f5w9oxpqeqmwvz9
    Max-Forwards: 70
    From: <sip:PIA512@Internal IP>;tag=3.d9r
    To: <sip:MAC%3a00041362B6B5@224.0.1.75>
    Call-ID: ebzpj9dh5@Internal IP
    CSeq: 62691 SUBSCRIBE
    Contact: <sip:PIA512@Internal IP>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Allow-Events: dialog,message-summary
    Event: ua-profile;profile-type="device";vendor="snom";model="snomM300";version="05.30.0002"
    Expires: 0
    Supported: replaces,100rel
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    Sent to udp:224.0.1.75:5060 at 19/04/2022 19:15:12  (686 bytes)

    SUBSCRIBE sip:MAC%3a00041362B6B5@224.0.1.75 SIP/2.0
    Via: SIP/2.0/UDP Internal IP;branch=z9hG4bK3gw3f5w9oxpqeqmwvz9
    Max-Forwards: 70
    From: <sip:PIA512@Internal IP>;tag=3.d9r
    To: <sip:MAC%3a00041362B6B5@224.0.1.75>
    Call-ID: ebzpj9dh5@Internal IP
    CSeq: 62691 SUBSCRIBE
    Contact: <sip:PIA512@Internal IP>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Allow-Events: dialog,message-summary
    Event: ua-profile;profile-type="device";vendor="snom";model="snomM300";version="05.30.0002"
    Expires: 0
    Supported: replaces,100rel
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    Sent to tcp:SBC:5060 at 19/04/2022 19:15:29  (649 bytes)

    REGISTER sip:SBC:5060;transport=TCP SIP/2.0
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bKep2b3s99g1w7h
    Max-Forwards: 70
    From: <sip:+49xxx01@SBC:5060;transport=TCP>;tag=zfb5ee
    To: <sip:+49xxx01@SBC:5060;transport=TCP>
    Call-ID: wr9vfjgbzj3c.37p0403l5
    CSeq: 71476 REGISTER
    Contact: <sip:+49xxx01@Internal IP:52063;transport=TCP;line=34243>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Allow-Events: talk,hold
    Expires: 3600
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    Sent to tcp:SBC:5060 at 19/04/2022 19:15:29  (641 bytes)

    REGISTER sip:SBC:5060;transport=TCP SIP/2.0
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bKb7c.0rvf18
    Max-Forwards: 70
    From: <sip:+49xxx65@SBC:5060;transport=TCP>;tag=lmmrvkq
    To: <sip:+49xxx65@SBC:5060;transport=TCP>
    Call-ID: qyvc2p55glfe6qnd
    CSeq: 66884 REGISTER
    Contact: <sip:+49xxx65@Internal IP:52063;transport=TCP;line=34877>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Allow-Events: talk,hold
    Expires: 3600
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    Received from tcp:0.0.0.0:5060 at 19/04/2022 19:15:29  (432 bytes)

    SIP/2.0 401 Unauthorized
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bKep2b3s99g1w7h
    From: <sip:+49xxx01@SBC;transport=tcp>;tag=zfb5ee
    To: <sip:+49xxx01@SBC;transport=tcp>;tag=1c804059375
    Call-ID: wr9vfjgbzj3c.37p0403l5
    CSeq: 71476 REGISTER
    www-authenticate: Digest realm="DefaultSipRealm",nonce="MTY1Nzc3NjE2MToyMTA4OTg0NzI3",qop="auth,auth-int",algorithm=MD5
    Content-Length: 0


    Sent to tcp:SBC:5060 at 19/04/2022 19:15:29  (912 bytes)

    REGISTER sip:SBC:5060;transport=TCP SIP/2.0
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bK16.0a09p6a8j40oofry6
    Max-Forwards: 70
    From: <sip:+49xxx01@SBC:5060;transport=TCP>;tag=zfb5ee
    To: <sip:+49xxx01@SBC:5060;transport=TCP>
    Call-ID: wr9vfjgbzj3c.37p0403l5
    CSeq: 71477 REGISTER
    Contact: <sip:+49xxx01@Internal IP:52063;transport=TCP;line=34243>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Allow-Events: talk,hold
    Authorization: Digest username="belab3", realm="DefaultSipRealm", nonce="MTY1Nzc3NjE2MToyMTA4OTg0NzI3", uri="sip:SBC:5060;transport=TCP", response="6e1390862adb4f17e9214c5cdb7a7309", qop=auth, nc=00000001, algorithm=MD5, cnonce="s54i3jyzxy"
    Expires: 3600
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    Received from tcp:0.0.0.0:5060 at 19/04/2022 19:15:29  (424 bytes)

    SIP/2.0 401 Unauthorized
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bKb7c.0rvf18
    From: <sip:+49xxx65@SBC;transport=tcp>;tag=lmmrvkq
    To: <sip:+49xxx65@SBC;transport=tcp>;tag=1c885674320
    Call-ID: qyvc2p55glfe6qnd
    CSeq: 66884 REGISTER
    www-authenticate: Digest realm="DefaultSipRealm",nonce="MTY1Nzc3NjE3NzoxNjE0NTM1NDgx",qop="auth,auth-int",algorithm=MD5
    Content-Length: 0


    Sent to tcp:SBC:5060 at 19/04/2022 19:15:29  (906 bytes)

    REGISTER sip:SBC:5060;transport=TCP SIP/2.0
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bK66p53hk1eobz8yas5shx7
    Max-Forwards: 70
    From: <sip:+49xxx65@SBC:5060;transport=TCP>;tag=lmmrvkq
    To: <sip:+49xxx65@SBC:5060;transport=TCP>
    Call-ID: qyvc2p55glfe6qnd
    CSeq: 66885 REGISTER
    Contact: <sip:+49xxx65@Internal IP:52063;transport=TCP;line=34877>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Allow-Events: talk,hold
    Authorization: Digest username="belab2", realm="DefaultSipRealm", nonce="MTY1Nzc3NjE3NzoxNjE0NTM1NDgx", uri="sip:SBC:5060;transport=TCP", response="733afed07bdca1ee597eec84a5ba7c83", qop=auth, nc=00000001, algorithm=MD5, cnonce="h2tg7i50"
    Expires: 3600
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    Received from tcp:0.0.0.0:5060 at 19/04/2022 19:15:29  (536 bytes)

    SIP/2.0 200 OK
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bK16.0a09p6a8j40oofry6
    From: <sip:+49xxx01@SBC;transport=tcp>;tag=zfb5ee
    To: <sip:+49xxx01@SBC;transport=tcp>;tag=1c1383351490
    Call-ID: wr9vfjgbzj3c.37p0403l5
    CSeq: 71477 REGISTER
    Contact: <sip:+49xxx01@Internal IP:52063;transport=tcp;line=34243>;expires=3600
    Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SUBSCRIBE,UPDATE
    Expires: 3600
    Server: Mediant SW/v.7.40A.250.262
    Content-Length: 0


    Received from tcp:0.0.0.0:5060 at 19/04/2022 19:15:29  (532 bytes)

    SIP/2.0 200 OK
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bK66p53hk1eobz8yas5shx7
    From: <sip:+49xxx65@SBC;transport=tcp>;tag=lmmrvkq
    To: <sip:+49xxx65@SBC;transport=tcp>;tag=1c1129622900
    Call-ID: qyvc2p55glfe6qnd
    CSeq: 66885 REGISTER
    Contact: <sip:+49xxx65@Internal IP:52063;transport=tcp;line=34877>;expires=3600
    Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SUBSCRIBE,UPDATE
    Expires: 3600
    Server: Mediant SW/v.7.40A.250.262
    Content-Length: 0


    Sent to tcp:SBC:5060 at 19/04/2022 19:15:29  (639 bytes)

    REGISTER sip:SBC:5060;transport=TCP SIP/2.0
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bKw1f3qo9n9k5
    Max-Forwards: 70
    From: <sip:+49xxx66@SBC:5060;transport=TCP>;tag=z0zzi
    To: <sip:+49xxx66@SBC:5060;transport=TCP>
    Call-ID: sc0zcktxoqbqzdt
    CSeq: 73440 REGISTER
    Contact: <sip:+49xxx66@Internal IP:52063;transport=TCP;line=65306>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Allow-Events: talk,hold
    Expires: 3600
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    Received from tcp:0.0.0.0:5060 at 19/04/2022 19:15:29  (422 bytes)

    SIP/2.0 401 Unauthorized
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bKw1f3qo9n9k5
    From: <sip:+49xxx66@SBC;transport=tcp>;tag=z0zzi
    To: <sip:+49xxx66@SBC;transport=tcp>;tag=1c153958103
    Call-ID: sc0zcktxoqbqzdt
    CSeq: 73440 REGISTER
    www-authenticate: Digest realm="DefaultSipRealm",nonce="MTY1Nzc3Njc4NDozNDcwNDQxNzE=",qop="auth,auth-int",algorithm=MD5
    Content-Length: 0


    Sent to tcp:SBC:5060 at 19/04/2022 19:15:29  (899 bytes)

    REGISTER sip:SBC:5060;transport=TCP SIP/2.0
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bKc1gtnrhax7.q4q
    Max-Forwards: 70
    From: <sip:+49xxx66@SBC:5060;transport=TCP>;tag=z0zzi
    To: <sip:+49xxx66@SBC:5060;transport=TCP>
    Call-ID: sc0zcktxoqbqzdt
    CSeq: 73441 REGISTER
    Contact: <sip:+49xxx66@Internal IP:52063;transport=TCP;line=65306>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Allow-Events: talk,hold
    Authorization: Digest username="belab1", realm="DefaultSipRealm", nonce="MTY1Nzc3Njc4NDozNDcwNDQxNzE=", uri="sip:SBC:5060;transport=TCP", response="7e7a2ff9d1145b7253dcff7f0e68a10b", qop=auth, nc=00000001, algorithm=MD5, cnonce="lc4.e4bznlq"
    Expires: 3600
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    Received from tcp:0.0.0.0:5060 at 19/04/2022 19:15:29  (522 bytes)

    SIP/2.0 200 OK
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bKc1gtnrhax7.q4q
    From: <sip:+49xxx66@SBC;transport=tcp>;tag=z0zzi
    To: <sip:+49xxx66@SBC;transport=tcp>;tag=1c1762628427
    Call-ID: sc0zcktxoqbqzdt
    CSeq: 73441 REGISTER
    Contact: <sip:+49xxx66@Internal IP:52063;transport=tcp;line=65306>;expires=3600
    Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SUBSCRIBE,UPDATE
    Expires: 3600
    Server: Mediant SW/v.7.40A.250.262
    Content-Length: 0


    Received from tcp:0.0.0.0:5060 at 19/04/2022 19:16:30  (1077 bytes)

    INVITE sip:+49xxx66@Internal IP:52063;transport=tcp;line=65306 SIP/2.0
    Via: SIP/2.0/TCP SBC:5060;alias;branch=z9hG4bKac995893985
    Max-Forwards: 60
    From: <sip:+491743125985@teseleso.ngn.vodafone.de;user=phone>;tag=1c616680213
    To: <sip:+49xxx66@hmbsx001.ngn.vodafone.de;user=phone>
    Call-ID: 11238016501942022191650@SBC
    CSeq: 1 INVITE
    Contact: <sip:+491743125985@SBC:5060;transport=tcp>
    Supported: 100rel,timer,resource-priority,sdp-anat
    Allow: INVITE, ACK, PRACK, CANCEL, BYE, OPTIONS, MESSAGE, NOTIFY, UPDATE, REGISTER, INFO, REFER, SUBSCRIBE
    Session-Expires: 1810;refresher=uac
    Min-SE: 600
    User-Agent: Mediant SW/v.7.40A.250.262
    P-Asserted-Identity: <sip:+491743125985@teseleso.ngn.vodafone.de;user=phone>
    Accept: application/sdp
    Date: Tue, 19 Apr 2022 19:16:33 GMT
    Content-Type: application/sdp
    Content-Length: 177
    P-Early-Media: supported

    v=0
    o=- 1579269708 896975789 IN IP4 SBC
    s=IMSS
    c=IN IP4 SBC
    t=0 0
    m=audio 6864 RTP/AVP 8 97
    a=rtpmap:97 telephone-event/8000
    a=ptime:20
    a=maxptime:30

    Sent to tcp:0.0.0.0:5060 at 19/04/2022 19:16:30  (312 bytes)

    SIP/2.0 100 Trying
    Via: SIP/2.0/TCP SBC:5060;alias;branch=z9hG4bKac995893985
    From: <sip:+491743125985@teseleso.ngn.vodafone.de;user=phone>;tag=1c616680213
    To: <sip:+49xxx66@hmbsx001.ngn.vodafone.de;user=phone>
    Call-ID: 11238016501942022191650@SBC
    CSeq: 1 INVITE
    Content-Length: 0


    Sent to tcp:0.0.0.0:5060 at 19/04/2022 19:16:31  (652 bytes)

    SIP/2.0 180 Ringing
    Via: SIP/2.0/TCP SBC:5060;alias;branch=z9hG4bKac995893985
    Max-Forwards: 70
    From: <sip:+491743125985@teseleso.ngn.vodafone.de;user=phone>;tag=1c616680213
    To: <sip:+49xxx66@hmbsx001.ngn.vodafone.de;user=phone>;tag=cn47hvutr
    Call-ID: 11238016501942022191650@SBC
    CSeq: 1 INVITE
    Contact: <sip:+49xxx66@Internal IP:52063;transport=TCP;line=65306>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Allow-Events: talk,hold
    Require: 100rel
    RSeq: 8314
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    Received from tcp:0.0.0.0:5060 at 19/04/2022 19:16:31  (505 bytes)

    PRACK sip:+49xxx66@Internal IP:52063;transport=TCP;line=65306 SIP/2.0
    Via: SIP/2.0/TCP SBC:5060;alias;branch=z9hG4bKac608585365
    Max-Forwards: 60
    From: <sip:+491743125985@teseleso.ngn.vodafone.de;user=phone>;tag=1c616680213
    To: <sip:+49xxx66@hmbsx001.ngn.vodafone.de;user=phone>;tag=cn47hvutr
    Call-ID: 11238016501942022191650@SBC
    CSeq: 2 PRACK
    Supported: 100rel,timer,resource-priority
    RAck: 8314 1 INVITE
    User-Agent: Mediant SW/v.7.40A.250.262
    Content-Length: 0


    Sent to tcp:0.0.0.0:5060 at 19/04/2022 19:16:31  (473 bytes)

    SIP/2.0 200 OK
    Via: SIP/2.0/TCP SBC:5060;alias;branch=z9hG4bKac608585365
    Max-Forwards: 60
    From: <sip:+491743125985@teseleso.ngn.vodafone.de;user=phone>;tag=1c616680213
    To: <sip:+49xxx66@hmbsx001.ngn.vodafone.de;user=phone>;tag=cn47hvutr
    Call-ID: 11238016501942022191650@SBC
    CSeq: 2 PRACK
    RAck: 8314 1 INVITE
    Supported: 100rel,timer,resource-priority
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    Sent to tcp:0.0.0.0:5060 at 19/04/2022 19:16:35  (1001 bytes)

    SIP/2.0 200 OK
    Via: SIP/2.0/TCP SBC:5060;alias;branch=z9hG4bKac995893985
    Max-Forwards: 70
    From: <sip:+491743125985@teseleso.ngn.vodafone.de;user=phone>;tag=1c616680213
    To: <sip:+49xxx66@hmbsx001.ngn.vodafone.de;user=phone>;tag=cn47hvutr
    Call-ID: 11238016501942022191650@SBC
    CSeq: 1 INVITE
    Contact: <sip:+49xxx66@Internal IP:52063;transport=TCP;line=65306>
    Accept: application/sdp
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Content-Disposition: session
    Min-SE: 90
    Require: timer
    Session-Expires: 1810;refresher=uac
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Type: application/sdp
    Content-Length: 255

    v=0
    o=+49xxx66 901987628 901987628 IN IP4 Internal IP
    s=-
    c=IN IP4 Internal IP
    t=0 0
    m=audio 50004 RTP/AVP 8 101
    a=rtpmap:8 PCMA/8000
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    a=ptime:20
    a=maxptime:80
    a=sendrecv
    a=rtcp:50005

    Received from tcp:0.0.0.0:5060 at 19/04/2022 19:16:35  (499 bytes)

    ACK sip:+49xxx66@Internal IP:52063;transport=TCP;line=65306 SIP/2.0
    Via: SIP/2.0/TCP SBC:5060;alias;branch=z9hG4bKac407442491
    Max-Forwards: 60
    From: <sip:+491743125985@teseleso.ngn.vodafone.de;user=phone>;tag=1c616680213
    To: <sip:+49xxx66@hmbsx001.ngn.vodafone.de;user=phone>;tag=cn47hvutr
    Call-ID: 11238016501942022191650@SBC
    CSeq: 1 ACK
    Contact: <sip:+491743125985@SBC:5060;transport=tcp>
    User-Agent: Mediant SW/v.7.40A.250.262
    Content-Length: 0


    Sent to tcp:SBC:5060 at 19/04/2022 19:24:03  (1007 bytes)

    INVITE sip:65@SBC:5060;user=phone SIP/2.0
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bK2s15c6reb3mh37med4
    Max-Forwards: 70
    From: "Be Lab 01" <sip:+49xxx01@SBC:5060;transport=TCP>;tag=okw3t0f43hpm
    To: <sip:65@SBC:5060;user=phone>
    Call-ID: 3wlzio1zrx@SBC
    CSeq: 59088 INVITE
    Contact: <sip:+49xxx01@Internal IP:52063;transport=TCP;line=34243>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    Content-Disposition: session
    Min-SE: 90
    Session-Expires: 3600
    Supported: replaces,100rel,timer
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Type: application/sdp
    Content-Length: 255

    v=0
    o=+49xxx01 913294759 913294759 IN IP4 Internal IP
    s=-
    c=IN IP4 Internal IP
    t=0 0
    m=audio 50006 RTP/AVP 8 101
    a=rtpmap:8 PCMA/8000
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    a=ptime:20
    a=maxptime:80
    a=sendrecv
    a=rtcp:50007

    Sent to tcp:SBC:5060 at 19/04/2022 19:25:59  (656 bytes)

    BYE sip:+491743125985@SBC:5060;transport=tcp SIP/2.0
    Via: SIP/2.0/TCP Internal IP:52063;branch=z9hG4bKllwcw46p9oe7yaiesokqha9sb8m82v
    Max-Forwards: 70
    From: <sip:+49xxx66@hmbsx001.ngn.vodafone.de;user=phone>;tag=cn47hvutr
    To: <sip:+491743125985@teseleso.ngn.vodafone.de;user=phone>;tag=1c616680213
    Call-ID: 11238016501942022191650@SBC
    CSeq: 22332 BYE
    Contact: <sip:+49xxx66@Internal IP:52063;transport=TCP;line=65306>
    Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
    User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
    Content-Length: 0


    SysLOG:

    NWK  .Info  2022-04-19T19:14:59Z 235-[ ETH: Link down] 
    NWK  .Info  2022-04-19T19:15:02Z 235-[ ETH: Link up] 
    NWK  .Info  2022-04-19T19:15:04Z 235-[ ETH: Delta Link down/up 3s] 
    NWK  .Info  2022-04-19T19:15:04Z 235-[ ETH: Running 100Mb/s] 
    NWK  .Info  2022-04-19T19:15:04Z 235-[ DHCP Enabled] 
    NWK  .Info  2022-04-19T19:15:04Z 235-[ IP Address: xxx226] 
    NWK  .Info  2022-04-19T19:15:04Z 235-[ Gateway Address: xxx] 
    NWK  .Info  2022-04-19T19:15:04Z 235-[ Subnet Mask: 255.255.255.0] 
    NWK  .Info  2022-04-19T19:15:04Z 235-[ DHCP Discover completed] 
    loc3 .Info  2022-04-19T19:15:06Z 235-[ MAC=00041362B6B5, SER= 00000, HW=1 CHIP=452] 
    loc3 .Info  2022-04-19T19:15:06Z 235-[ Stun detection disabled] 
    loc3 .Info  2022-04-19T19:15:07Z 235-[ RemCfg: Checking for settings] 
    loc3 .Info  2022-04-19T19:15:07Z 235-[ RemCfg: Attempting fetch of file: http://provisioning.snom.com/snomM300.htm
    loc3 .Info  2022-04-19T19:15:07Z 235-[ RemCfg: File loaded successfully] 
    loc3 .Info  2022-04-19T19:15:07Z 235-[ RemCfg: Redirection detected ] 
    loc3 .Info  2022-04-19T19:15:07Z 235-[ RemCfg: Attempting fetch of file: http://provisioning.snom.com/snomM300/snomM300.php?mac=00041362B6B5
    loc3 .Info  2022-04-19T19:15:07Z 235-[ RemCfg: File loaded successfully] 
    loc3 .Info  2022-04-19T19:15:07Z 235-[ RemCfg: Detected XML file] 
    loc3 .Info  2022-04-19T19:15:07Z 235-[ RemCfg: Error parsing file] 
    loc3 .Info  2022-04-19T19:15:07Z 235-[ RemCfg: No setting server offered via SIP PNP] 
    loc3 .Info  2022-04-19T19:15:07Z 235-[ RemCfg: No setting server offered in DHCP] 
    loc3 .Info  2022-04-19T19:15:07Z 235-[ RemCfg: Provisioning completed] 
    loc3 .Info  2022-04-19T19:15:07Z 235-[ UpdateAllTimestamps] 
    loc3 .Info  2022-04-19T19:15:07Z 235-[ RemCfg: Attempting fetch of file: /] 
    loc3 .Info  2022-04-19T19:15:08Z 235-[ RemCfg: Error loading file] 
    loc3 .Info  2022-04-19T19:15:08Z 235-[ RemCfg: Provisioning PhoneBook completed] 
    loc7 .Info  2022-04-19T19:15:08Z 235-[ Firmware Device M300 Version:0530 Branch:0002 Rfpi:1337BC3E00] 
    loc7 .Info  2022-04-19T19:15:08Z 235-[ DECT Mode: EU] 
    loc7 .Info  2022-04-19T19:15:08Z 235-[ System Mode: (a4/55)] 
    loc7 .Info  2022-04-19T19:15:08Z 235-[ Normal Reboot] 
    loc7 .Info  2022-04-19T19:15:08Z 235-[ Extended mail full error log skipped due to no data!] 
    loc7 .Info  2022-04-19T19:15:08Z 235-[ DECT protocol delay timer started (single cell)] 
    clk  .Info  2022-04-19T19:15:11Z 235-[ UTC time set initiated by SNTP (1650388511 s)] 
    clk  .Info  2022-04-19T19:15:11Z 235-[ Local time set (2022-04-19 19:15:11)] 
    loc3 .Info  2022-04-19T19:15:11Z 235-[ Time and Date and DST Broadcast to handsets] 
    loc7 .Info  2022-04-19T19:15:25Z 235-[ DECT protocol activated, delay passed (single cell)] 
    loc7 .Info  2022-04-19T19:15:25Z 235-[ DECT: FP_START_MAC FpIdx#0x00: SourceFpIdx#0x00, SyncState State#0] 
    loc0 .Info  2022-04-19T19:15:26Z 235-[ DECT master mode] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ Device M25 version:0530 Branch:0002 Present@RPN00 Ipui:038D605C9B Pmid:00002 OperationTime:13831sec] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ updateRegistrationGroupCall all god for SipExtId #1 Used for PP's: #2] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ Register +49xxx01 for Line: 0] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ Device M25 version:0530 Branch:0002 Present@RPN00 Ipui:038D604547 Pmid:00003 OperationTime:437987sec] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ updateRegistrationGroupCall all god for SipExtId #2 Used for PP's: #4] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ Register +49xxx65 for Line: 0] 
    loc3 .Info  2022-04-19T19:15:29Z 235-[ Registration of user +49xxx01 (ExtIdx#0001) on domain SBC:5060 succeeded] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ updateRegistrationGroupCall all god for SipExtId #1 Used for PP's: #2] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ DECT MAC statistics: Pmid:E720D Typ:FN Res:3 Frames:60,9,0 Bho:0,0 Rssi:0] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ DECT MAC statistics: Pmid:E0B02 Typ:FN Res:3 Frames:59,9,0 Bho:0,0 Rssi:0] 
    loc3 .Info  2022-04-19T19:15:29Z 235-[ Registration of user +49xxx65 (ExtIdx#0002) on domain SBC:5060 succeeded] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ updateRegistrationGroupCall all god for SipExtId #2 Used for PP's: #4] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ Device M25 version:0530 Branch:0002 Present@RPN00 Ipui:0328D24775 Pmid:00001 OperationTime:438730sec] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ updateRegistrationGroupCall all god for SipExtId #0 Used for PP's: #1] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ Register +49xxx66 for Line: 0] 
    loc3 .Info  2022-04-19T19:15:29Z 235-[ Registration of user +49xxx66 (ExtIdx#0000) on domain SBC:5060 succeeded] 
    loc7 .Info  2022-04-19T19:15:29Z 235-[ updateRegistrationGroupCall all god for SipExtId #0 Used for PP's: #1] 
    loc7 .Info  2022-04-19T19:15:30Z 235-[ DECT MAC statistics: Pmid:E9A8D Typ:FN Res:3 Frames:60,9,0 Bho:0,0 Rssi:0] 
    loc7 .Info  2022-04-19T19:15:31Z 235-[ DECT MAC statistics: Pmid:00003 Typ:FN Res:0 Frames:213,55,0 Bho:0,0 Rssi:59] 
    loc7 .Info  2022-04-19T19:15:34Z 235-[ DECT MAC statistics: Pmid:00001 Typ:FN Res:0 Frames:213,55,0 Bho:0,0 Rssi:59] 
    loc7 .Info  2022-04-19T19:15:34Z 235-[ DECT MAC statistics: Pmid:00002 Typ:FN Res:0 Frames:215,55,0 Bho:0,0 Rssi:59] 
    loc7 .Info  2022-04-19T19:16:30Z 235-[ Call Incoming user +49xxx66] 
    loc3 .Info  2022-04-19T19:16:30Z 235-[ FpCtrlResetHandler PR#712 AC#0:0 RP#0 HR#0] 
    loc3 .Info  2022-04-19T19:16:30Z 235-[ FpCtrlResetHandler CRE AC#1:0 RP#0 HR#0] 
    loc0 .Info  2022-04-19T19:16:35Z 235-[ RSSI report HS:+49xxx66 PMID:00001 RPN:00 dBm:-24] 
    loc0 .Info  2022-04-19T19:16:35Z 235-[ PMID:00001 Battery Level: 99] 
    loc7 .Info  2022-04-19T19:16:36Z 235-[ DECT Audio active Pmid:00001] 
    loc7 .Info  2022-04-19T19:24:03Z 235-[ Call Outgoing user +49xxx01] 
    loc0 .Info  2022-04-19T19:24:03Z 235-[ RSSI report HS:+49xxx01 PMID:00002 RPN:00 dBm:-24] 
    loc0 .Info  2022-04-19T19:24:03Z 235-[ PMID:00002 Battery Level: 97] 
    loc7 .Info  2022-04-19T19:24:08Z 235-[ Call Release user +49xxx01 Duration: 00:00:05] 
    loc7 .Info  2022-04-19T19:24:08Z 235-[ DECT MAC statistics: Pmid:00002 Typ:FN Res:0 Frames:541,3,0 Bho:0,0 Rssi:59] 
    loc7 .Info  2022-04-19T19:25:59Z 235-[ Call Released user +49xxx66 Duration: 00:09:29] 
    loc3 .Info  2022-04-19T19:25:59Z 235-[ FpCtrlResetHandler PR#713 AC#1:0 RP#0 HR#0] 
    loc3 .Info  2022-04-19T19:25:59Z 235-[ FpCtrlResetHandler TER AC#0:0 RP#0 HR#0] 
    loc7 .Info  2022-04-19T19:25:59Z 235-[ DECT MAC statistics: Pmid:00001 Typ:FA Res:0 Frames:56841,0,0 Bho:0,0 Rssi:58] 

  5. Snom Federico Rossi

    Hi,

    the outgoing call INVITE (call id 3wlzio1zrx@SBC) received no response. Do you see the SIP reply on PBX/SBC?

  6. End user Christian Schurig

    Hi Federico,

    thanks for your support. The Network issue seams to be solved now.

    Since we added the original Firewall IPs of our Firewall Cluster member to SBC/PBX allow list, it works and incomming and outgoing calls are available.
    So as a remark for other Users: if you use a Fortigate Firewall Cluster, it seams to be required to also allow the solo IPs of the Clustermembers instead of the Cluster IP only.


    Howeveer, no I have some registration issues, which are new, as this device was already registeret.
    There are 3 M25 registered to the M300 1 x m25 has registration issues...

    Can you help me with the following siplog:

    Received from tcp:0.0.0.0:5060 at 20/04/2022 13:51:00  (453 bytes)

    SIP/2.0 401 Unauthorized
    Via: SIP/2.0/TCP internalip6:52697;branch=z9hG4bKc59eymww3c3b3jc65jpcisje048o6vh
    From: <sip:+49xxx01@sbc01;transport=tcp>;tag=9ahe7.i
    To: <sip:+49xxx01@sbc01;transport=tcp>;tag=1c1244073051
    Call-ID: 3a8rm9l16d6jdb9nxsgewoman9
    CSeq: 123126 REGISTER
    www-authenticate: Digest realm="DefaultSipRealm",nonce="MTc0MzQ0ODoxMTk4Mjk0MTcx",qop="auth,auth-int",algorithm=MD5
    Content-Length: 0


    Received from tcp:0.0.0.0:5060 at 20/04/2022 13:51:00  (447 bytes)

    SIP/2.0 401 Unauthorized
    Via: SIP/2.0/TCP internalIP:52697;branch=z9hG4bK.ae5t2ldu005vviboq5u07xm.
    From: <sip:+49xxx01@sbc01;transport=tcp>;tag=9ahe7.i
    To: <sip:+49xxx01@sbc01transport=tcp>;tag=1c1757889215
    Call-ID: 3a8rm9l16d6jdb9nxsgewoman9
    CSeq: 123130 REGISTER
    www-authenticate: Digest realm="DefaultSipRealm",nonce="MTc0MzY5MjozNDY4ODQzMTM=",qop="auth,auth-int",algorithm=MD5
    Content-Length: 0


    Syslog:

    loc3 .Info  2022-04-20T13:56:51Z 235-[ Registration of user +49xxx01 (ExtIdx#0001) on domain sbc01:5060 failed] 
    loc7 .Info  2022-04-20T13:56:51Z 235-[ updateRegistrationGroupCall all god for SipExtId #1 Used for PP's: #2] 
    loc3 .Info  2022-04-20T13:57:02Z 235-[ Registration of user +49xxx01 (ExtIdx#0001) on domain sbc01:5060 failed] 
    loc7 .Info  2022-04-20T13:57:02Z 235-[ updateRegistrationGroupCall all god for SipExtId #1 Used for PP's: #2] 
    clk  .Info  2022-04-20T13:57:05Z 235-[ UTC time set initiated by SNTP (1650455825 s)] 
    clk  .Info  2022-04-20T13:57:05Z 235-[ Local time set (2022-04-20 13:57:05)] 
    loc3 .Info  2022-04-20T13:57:05Z 235-[ Time and Date and DST Broadcast to handsets] 
    loc3 .Info  2022-04-20T13:57:13Z 235-[ Registration of user +49xxx01 (ExtIdx#0001) on domain sbc01:5060 failed] 
    loc7 .Info  2022-04-20T13:57:13Z 235-[ updateRegistrationGroupCall all god for SipExtId #1 Used for PP's: #2] 


  7. Snom Federico Rossi

    Could you post a screenshot of the Network webpage?

    1. End user Christian Schurig

      btw. the registration issue with sip:+49xxx01@sbc01 is solved now. SBC techniken tried this account on an other device.
      So existing errors look like network issues.
      We have same issues now with not working calls after the FW change...sometimes Its working, somtimes not...
      We try to find out if the sip device request on the PBX is visible.

      Any recommendations for networksettings ?


      Sent to tcp:20.218.72.45:5060 at 20/04/2022 17:49:06  (659 bytes)

      REGISTER sip:sbc01:5060;transport=TCP SIP/2.0
      Via: SIP/2.0/TCP internalIP:52067;branch=z9hG4bKl8oaph25vivv36.jr239tvta2o
      Max-Forwards: 70
      From: <sip:+49xxx65@sbc01:5060;transport=TCP>;tag=0w923xc3ruwn
      To: <sip:+49xxx65@sbc01:5060;transport=TCP>
      Call-ID: myd0kwa7spy.
      CSeq: 166332 REGISTER
      Contact: <sip:+49xxx65@internalIP:52067;transport=TCP;line=22809>
      Allow: INVITE, CANCEL, BYE, ACK, REGISTER, OPTIONS, REFER, SUBSCRIBE, NOTIFY, MESSAGE, INFO, PRACK, UPDATE
      Allow-Events: talk,hold
      Expires: 3600
      User-Agent: snomM300/05.30.0002 (MAC=00041362B6B5; SER= 00000; HW=1)
      Content-Length: 0


      regards

      Christian Schurig

  8. Snom Federico Rossi

    Hi Christian,
    I asked about Network page because the logs you posted earlier made me think about wrong values of the sip failover fields, but from the image they are correct.

    FW change, do you mean firewall, right? The SIP REGISTER is ok, you must check if this message reaches the PBX and if the PBX responds.

  9. End user Christian Schurig

    Hi Federico,
    yes, we changed something on the Firewall, but without any effect.
    Today we startet an other test, while we changed SIP protokoll to UDP instead of TCP.

    Since we have done this, I dont have this amount of SIP registration requests anymore on the M300.
    And until now it seams to be stable.
    (Registration request was about every 10 to 60 sec, now its 60 Minutes.)
    Our Firewall and BPX Experts expect, that there is something wrong with TCP Sessions, interrupts or droped packets... definitely a firewall problem.

    However, it seams like its not an Device Issue.
    So thanks for your support.

    Best Regards

    Christian Schurig