Content

Page tree

D-SERIES

WEB USER INTERFACE

Identity -> NAT (Tab) -> Number of initial keep-alives on RTP port 

PHONE USER INTERFACE

N/A

FIRMWARE VERSIONS

V8  

Starting versions: 8.7.5

XML CONFIGURATION

<initial_rtp_keep_alives idx="INDEX" perm="PERMISSIONFLAG">VALIDVALUE</initial_rtp_keep_alives>

DESCRIPTION

The number of keep-alives the phone should send out at the beginning of an RTP session. A keep-alive is an empty STUN Binding Request and serves to open a pin hole in the firewall. The phone sends one keep-alive by default, i.e. when the setting is empty. This is for backward compatibility. Set this to zero if you want no keep-alives. Note that if the phone receives such a Binding Request, it will answer it with a Binding Response.

This feature is not supported on the snom MP, snom 820, snom 821, and snom 870 telephone models, and the setting has no effect on these phones.

VALIDVALUE

empty; 0 - 256

DEFAULTVALUE

empty