[cisco-voip] SCCP StopTone sent before call answered

Erick Wellnitz ewellnitzvoip at gmail.com
Fri Mar 29 15:29:42 EDT 2013


The 183 with sdp is signaling to start media as Wes suggested.  It appears
I have two choices.  Disable early media in the cube or in the sip profile
on CUCM.
On Mar 28, 2013 8:20 PM, "Jason Aarons (AM)" <jason.aarons at dimensiondata.com>
wrote:

> I recall the 183 means a inband message, usually a disconnected number,
> etc.  I could be wrong.  Been awhile.  It was a outbound dialer on a
> contact center that was sip.****
>
> ** **
>
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *Erick Wellnitz
> *Sent:* Thursday, March 28, 2013 3:59 PM
> *To:* Wes Sisk
> *Cc:* cisco-voip
> *Subject:* Re: [cisco-voip] SCCP StopTone sent before call answered****
>
> ** **
>
>
>
> I noticed that calls with ringback do not have a SIP 183 message.  Would
> I be able to filter the messages or will that cause more problems?****
>
> On Thu, Mar 28, 2013 at 12:48 PM, Wes Sisk <wsisk at cisco.com> wrote:****
>
> Most likely something in the progress indicates to cut through audio so we
> stop tone on the phone and try to nail up in band audio…
>
> -wes
>
> On Mar 28, 2013, at 1:14 PM, Erick Wellnitz <ewellnitzvoip at gmail.com>
> wrote:
>
> Thanks in advance for any ideas.
>
> I have a rather strange issue with ringback.
>
> CUCM 8.0.3.20000-2
> IOS 12.4(24)T4
>
> I have a SIP trunk configured to my CUBE with several paterns pointing to
> the trunk.  This CUBE points to another CUBE in the UK.  We route calls
> from the US to the UK PSTN over the SIP trunk to the UK.  The calls connect
> and I hear the remote party fine but there is silence until the remote end
> answers.
>
> I see in the traces that we receive the 180 Ringing message over the
> trunk.  I also see the SCCP StartTone message is sent to the phone.  When
> we get the SIP 183 Session Progress message I immediately see a SCCP
> StopTone message.  I also see the SCCP StopTone message when the remote
> party answers.  Has anyone seen anything like this before?
>
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip****
>
>
>
>
> itevomcid ****
>
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