[cisco-voip] SIP Trunk for ISP's - DTMF SIP Notify

[Bill]

No VMware is not your problem in this case. 

 

  _____  

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Paul van den IJssel
Sent: Tuesday, June 01, 2010 4:06 PM
To: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] SIP Trunk for ISP's - DTMF SIP Notify

 

I added a MRGL to the both DP's (phones and SIP Trunk) containing MoH, CFB,
ANN and MTP. But without any result. I'm running the CUCM in Vmware.. could
this have anything to do with the MTP's not be assigned when needed for the
DTMF?

 

- Paul

2010/6/1 Jason Aarons (US) <jason.aarons at us.didata.com>

Use the CallManager or IOS Software MTP in a MRG/MRGL and assign to Device
Pool, etc is what I think others are saying.

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Paul van den IJssel
Sent: Tuesday, June 01, 2010 4:53 PM
To: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] SIP Trunk for ISP's - DTMF SIP Notify

 

The SIP Trunk is directly connected to the CUCM (7.X). So there is no ISR,
or CUBE in between. 

The System Guide of CUCM 7.X states that only the 7971 7975 support RFC2833.
Currently I'm running the test with 7941 and 7961 phones. Also all regions
are set to use g.711 and there is no MRGL associated to the Device Pools of
the phones and the SIP Trunk.

 

If I try setting up a call and run the RTMT tool I don't see the CUCM using
any MTP's. The SBC which is used isn't a Cisco CUBE.. but I've lost the
name, I thought it was a NextTone or something.

 

- Paul

2010/6/1 Ryan Ratliff <rratliff at cisco.com>

What phones do you have?  Most of them do in fact support RFC2833.
Additionally, using g.711 for rtp the software MTP resources on your CUCM
can convert the dtmf just fine.

Even if you are using g729 you can use a software MTP on the router acting
as your CUBE to do the necessary dtmf conversion which doesn't require any
hardware DSPs.

-Ryan


On Jun 1, 2010, at 4:34 PM, Paul van den IJssel wrote:

> Hi Guys,
>
> Currently I'm testing a SIP Trunk with our ISP. Everything is working fine
but I don't get the DTMF to work. This because my SCCP phones only support
OOB DTMF. So to get it to work with SIP RFC2833 (in-band) I need an
expensive transcoder. But now we've set the SIP Trunk to SIP Notify
(out-band) which should work with the IP Phones OOB, but all I get is
'SIP/2.0 403 Forbidden'.
>
> How do I get this to work without the use of a hardware Transcoder?
>
> Best regards,
>
> Paul van den IJssel
> Digacom

> _______________________________________________
> cisco-voip mailing list

> cisco-voip at puck.nether.net

> https://puck.nether.net/mailman/listinfo/cisco-voip

 

  _____  

Disclaimer: This e-mail communication and any attachments may contain
confidential and privileged information and is for use by the designated
addressee(s) named above only. If you are not the intended addressee, you
are hereby notified that you have received this communication in error and
that any use or reproduction of this email or its contents is strictly
prohibited and may be unlawful. If you have received this communication in
error, please notify us immediately by replying to this message and deleting
it from your computer. Thank you. 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/cisco-voip/attachments/20100601/2e0ae424/attachment.html>