[Freeswitch-users] CCS_RINGING too early

[Hynek Cihlar]

Is there even a valid use case for Freeswitch to set a channel to RINGING
before the actual ring is signaled by the far endpoint? What other evidence
would be helpful to diagnose the issue?

Hynek


On Tue, Feb 12, 2013 at 12:03 PM, Hynek Cihlar <hynek.cihlar at gmail.com>wrote:

> When originating a call the respective call channel's call state is set to
> RINGING right after progress 100 is received.
>
> Here's the captured flow:
>
> |Time     | <src ip>                              |
> |         |                   | <dst ip>          |
> |2.848    |         INVITE SDP (g711A g711U GSM telephone-eventRTP...e-101
> CN)          |SIP From: "" <sip:endpoint removed To:<sip:endpoint removed
> |         |(5080)   ------------------>  (5060)   |
> |2.848    |         407 Proxy Authentication Required          |SIP Status
> |         |(5080)   <------------------  (5060)   |
> |2.849    |         ACK       |                   |SIP Request
> |         |(5080)   ------------------>  (5060)   |
> |2.849    |         INVITE SDP (g711A g711U GSM telephone-eventRTP...e-101
> CN)          |SIP From: "" <sip:endpoint removed To:<sip:endpoint removed
> |         |(5080)   ------------------>  (5060)   |
> |2.850    |         100 Trying|                   |SIP Status
> |         |(5080)   <------------------  (5060)   |
> |13.444   |         180 Ringing                   |SIP Status
> |         |(5080)   <------------------  (5060)   |
> |13.445   |         183 Session Progress SDP (g711A g711U GSM
> tele...ne-eventRTPType-101)          |SIP Status
> |         |(5080)   <------------------  (5060)   |
> |13.445   |         RTP (g711A)                   |RTP Num packets:230
>  Duration:4.574s SSRC:0x1E777E26
> |         |(26056)  <------------------  (19312)  |
> |13.601   |         RTP (g711A)                   |RTP Num packets:220
>  Duration:4.419s SSRC:0xA530C519
> |         |(26056)  ------------------>  (19312)  |
>
> After the 100 Trying is received the switch executes
> switch_channel_perform_set_running_state (switch_channel.c) and the channel
> call state is set to RINGING and ESL event CHANNEL_CALLSTATE:RINGING is
> generated.
>
> I would expect the channel call state to be set to RINGING only after 180
> Ringing is received from the far endpoint.
>
> Could anybody give me a hint what could be wrong or what steps to take to
> figure out? I am already out of ideas.
>
> Thanks!
> Hynek
>
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