Distinctive Ringing protocolPBX sends URI of a ring melody in SIP ‘Alert-Info’ header field in the following format: Alert-Info: <URI>[;<RINGER_INFO>[;<POSTFIX>]] [] – includes optional parameters <URI> URI of the ringer melody. If a special (configurable) URI is used, e.g.: <http://www.notused.com>, or <http://127.0.0.1> then it means for the phone that Alert-Info contains local ring melody tag, otherwise URI points at a ringer melody (in .wav format) in the network, which shall be downloaded and played by the phone. <RINGER_INFO> Tag of internal ringer melody in the form <info=TAG>. TAG is configured via phone’s Web UI. <POSTFIX> Groupcall:Alert-Info: <http://www.notused.com>;info=alert-group Internal call:Alert-Info: <http://www.notused.com>;info=alert-internal external call:Alert-Info: <http://www.notused.com>;info=alert-external Examples
Alert-Info from Broadsoft PBX; the phone generates ringer pattern as required by Broadsoft: <http://127.0.0.1/Bellcore-dr2> <http://127.0.0.1/Bellcore-dr3> <http://127.0.0.1/Bellcore-dr4> <http://127.0.0.1/Bellcore-dr5> External melody to be downloaded from the network; the phone downloads and plays the melody: <http://www.example.com/sounds/moo.wav> Phone internal melodies; the user has to assign ringer tags to the internal melodies via the phone’s Web UI: <http://www.notused.com>;info=alert-external; <http://www.notused.com>;info=alert-group; <http://127.0.0.1>;info=alert-boss; <http://127.0.0.1>;info=alert-sell-office; Gigaset T300/T500 programming:In the Gigaset T300/T500 you can enable distinctive ringing by changing the Manual configuration of the line settings, like the example below. Here we added the line: exten => _.,3,SIPAddHeader(Alert-Info: <http://127.0.0.1>\;info=alert-external) This causes that for every incoming external call, the Alert-Info header is added and the device now can react on this using a special ringtone. |