OverviewThe Intercom feature provides the ability to establish auto-answered calls on snom IP phones allowing paging among them. A typical use case would be an announcement in an office environment you would like to make from one colleague to another or to a group of colleagues, respectively. It is only usable with Snom Desk IP Phones "D Series". Restrictions may apply in certain SIP Server environments.
ConfigurationCalling phone- Via web user interface configure any free Function Key as type Intercom.
- Type in the extension (can be single or call group) you want to announce the call to

Called phone(s)- Via web user interface configure the setting: Advanced → Behavior : Intercom Policy to "Always"
- Via Auto Provisisoning use setting answer_after_policy accordingly.
- If there already is an active call, even if answer_after_policy is set to "always", remember that call_waiting needs to be enabled
UsageCalling phone- Press the configured intercom function key
Hang up the receiver.
Called phone(s)- Incoming Intercom calls will be auto-answered, i.e. no there is no ringtone announcing the call. The microphone is immediately activated!
- The call can be closed at anytime by hanging up or pressing the Cancel key.
Technical Background Info |
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Alert-Info: <http://www.notused.com>;info=alert-autoanswer;delay=0 |
SIP PBX- SIP PBX may alter the Alert-Info Header, for being a safety-relevant feature. Therefore the described functionality can only be achieved when the SIP INVITE is received unaltered.
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