[SIPForum-discussion] Wrong Re-invite

[Ranjith Kumar]

Hi John,

Thanks for your response.  This is not a Fax call.  This is a Voice Call and
after few seconds the Re-invite is sent and the voice CAll is converted into
a Fax call.  So no voice is passed after the Reinvite (t38 ) and 200 OK is
exchanged.  So the End users think that the call is dropped.

Regards,
Randy

On Wed, Nov 4, 2009 at 2:18 AM, John Atkinson <johnat at nortel.com> wrote:

> wow,
>
> usually, terminating end is the one to re-invite to t.38 - see T.38
> annexD
>
> However,
>
> initial invite is at t=18s
>
> re-invite to t.38 is at t=175s
>
> If this was truly a fax call, I would have expected the re-invite at
> around 4s after answer (i.e. after the 200ok(invite))
>
> I suspect something wrong
>
> John
>
> -----Original Message-----
> From: discussion-bounces at sipforum.org
> [mailto:discussion-bounces at sipforum.org] On Behalf Of Ranjith Kumar
> Sent: Tuesday, November 03, 2009 4:49 AM
> To: discussion at sipforum.org
> Subject: [SIPForum-discussion] Wrong Re-invite
>
> Hi All,
>
> I am trying to connect a Public SIP trunk to my PBX.  I am able to make
> successful outgoing calls but during the conversation the PBX is sending
> a Re-invite with T38 Capabilities and the voice call is changed into a
> FAX call.  I am not sure why the PBX is sending the T38 invite.
>
> I would attach the trace for your Verification.
>
> Regards,
> Randy
>
>
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