Distinctive Ringing (V2) - Siemens Asterisk OpenStage 15 Administration Manual

administration.fm
Administration

Distinctive Ringing (V2)

3.8 Distinctive Ringing (V2)
The SIP server may provide information indicating a specific type of call within an incoming call.
With firmware V2, the phone can use this information to choose a ring tone according to the
call type.
The relevant information is carried as a string in the SIP Alert-Info header. When this string
matches a specific Name, the corresponding ringer is triggered. In the Asterisk dial plan
(extensions.conf), this is done by the SIPAddHeader() function. The following example
line from an extensions.conf, which precedes the line containing the Dial() function,
adds the specific string alert-internal to the SIP header for a specific number pattern:
exten => _3XXX,1,SIPAddHeader("Alert-Info:alert-internal")
Thus, in this example, the value for Name would be "alert-internal".
The Ringer sound parameter determines whether a pattern, i. e. melody, or a specific sound
file shall be used as ringer.
Pattern Melody selects the melody pattern that will be used if Ringer sound is set to "Pattern".
Pattern sequence determines the length for the melody pattern, and the interval between the
repetitions of the pattern. There are 3 variants:
• "1": 1 sec ON, 4 sec OFF
• "2": 1 sec ON, 2 sec OFF
• "3": 0.7 sec ON, 0.7 sec OFF, 0.7 sec ON, 3 sec OFF
The Duration parameter determines how long the phone will ring on an incoming call. The
range is 0-300 sec.
With the Audible parameter, the ringer can be muted. In this case, an incoming call will be in-
dicated only visually.
3-88
A31003-S2000-M102-3-76A9, 08/07/2009
Asterisk - OpenStage Family, Administration Manual