[Asterisk-Users] Outgoing Ringback Indications IAX vs. SIP

[Tim Panton]

On 17 Apr 2006, at 00:30, Steve Feinstein wrote:

> Actually it makes no difference.  I tried it in an attempt to get  
> something to happen.
>
> Thanks,
> -Steve
>
> Eric "ManxPower" Wieling wrote:
>> What happens if you remove the "r" option?  "r" is almost NEVER  
>> useful.
>>
>> Steve Feinstein wrote:
>>> I've been pulling my hair out over this one trying to understand it.
>>>
>>> If you have a very simple extension:
>>>
>>> exten => 1,n,Dial(IAX2/Steve|24|r)
>>>
>>> Everything I've seen says this should tell the IAX phone (our own  
>>> iaxclient based one) to make a ringing sound, or asterisk should  
>>> make the ringback indication itself if it determines that the  
>>> channel can't do it for itself.
>>>
>>> But you can dial this extension all day and you never hear a  
>>> ringback indication.  Dial it from a SIP softphone and you do.   
>>> If you change the default country in the indications.conf, the  
>>> SIP phone will change the way the ring sounds.  IAX, still nothing.
>>>
>>> You can use PlayTones(ring) in the dialplan before the Dial(),  
>>> and it seems to behave ok.  Playing the appropriate ring  
>>> indication until the call is answered.  But it seems like the  
>>> behavior is inconsistent with IAX vs. SIP.  Is this by design?
>>>
>>> All the IAX soft phones I've tried are based on the same  
>>> iaxclient libs, so it's hard to know if it's the phone or  
>>> asterisk that's not behaving right.  Has anyone used an iax hard  
>>> phone, some other IAX device/software, and does it exhibit the  
>>> same behavior?  Or is this a problem with the iax code not being  
>>> telling asterisk that IAX phones need to have their indications  
>>> faked.
>>>
>>> Any ideas about what's going on would be most gratefully  
>>> appreciated.
>>>
>>>

I don't know the IAXclient libs, but an IAX client is supposed to  
send a RINGING packet back after it
accepts a call to notify the other end it should generate ringback  
for the user. The protocol allows it to go
straight to ANSWER, or send a PROCEEDING if it hasn't reached the end- 
point yet.

Is your client sending a RINGING packet at the right moment ?

Is there a call you should make (after accept but before answer) to  
get it to send RINGING?


Tim Panton
tim at mexuar.com