After reading through the rfc http://www.ietf.org/rfc/rfc2976 and cisco
site
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ftinfo.htm
And googling a bit I can not find anything that look out of place, I
notices a few formating difference on examples I have seen and most
examples have a content-length: 26 but I don't think that should
matter, and the rfc does not look like there is any rtp needed for info
application/dtmf-relay packets. Could if be as simple and the space
after the =
INFO sip:201 at 192.168.1.38 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.36:5060
From: sip:101 at 192.168.1.36;tag=43
To: sip:201 at 192.168.1.38;tag=9753
Call-ID: 100450864100 at 192.168.1.36
CSeq: 3 INFO
Content-Length: 26
Content-Type: application/dtmf-relay
Signal= 2
Duration= 110
James Sizemore wrote:
I have a beta1 gateway with a 4 port card in PRI mode, the gateway sends
DTMF via sip info packets to another beta1 box. The peer is set to
receive info. What I get is a click sound and a very very short tone.
Sound like to me that I get the first part of the tone before it is
captured and put in the info packet, but the gateway never seems to send
the tone, the packet that gets sent looks like this:
--
-- SIP read from 192.168.117.4:5060:
INFO sip:[EMAIL PROTECTED] SIP/2.0
Via: SIP/2.0/UDP 192.168.117.4:5060;branch=z9hG4bK7bd677b8
From: WIRELESS CALLER sip:[EMAIL PROTECTED];tag=as37dd610c
To: sip:[EMAIL PROTECTED];tag=as3af9dc41
Contact: sip:[EMAIL PROTECTED]
Call-ID: [EMAIL PROTECTED]
CSeq: 120 INFO
User-Agent: ISDN-NET Voip Gateway
Content-Type: application/dtmf-relay
Content-Length: 24
Signal=5
Duration=500
---
I know it is not the receiving box messing things up as I get the same
short short DTMF sound on a cisco IAD. Something is wrong with this
packet but I just can't see it!!! Is there any rtp that gets sent,
anyone know what the Content-length does?
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