<DIV>Dear all,</DIV>
<DIV> </DIV>
<DIV>Following my previous email below, I am still facing the same problem without success of any solution. In this respect, I would very much appreciate whether someone who has come across the same problem in the past and possibly solved it, could at least possible tell me if it was a Cisco IOS issue or a ser configuration issue.</DIV>
<DIV> </DIV>
<DIV>Many thanks in advanced.</DIV>
<DIV> </DIV>
<DIV>Regards,</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Karl<BR><BR><B><I>karl <ser_newbie@yahoo.com></I></B> wrote:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Date: Fri, 8 Apr 2005 03:52:06 -0700 (PDT)<BR>From: karl <ser_newbie@yahoo.com><BR>To: serusers@lists.iptel.org<BR>Subject: [Serusers] Re [cisco-voip] No early media for ISDN->SIP->ISDN<BR><BR>
<DIV>Hello all,</DIV>
<DIV> </DIV>
<DIV>I have just come across the below email by Andreas Graning re the above subject, and its just exactly the same problem I am currently faced with. In this respect, I was wondering if anyone has in the meantime come across a solution to the issue. </DIV>
<DIV> </DIV>
<DIV>Any help on this subject shall be greatly appreciated.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Thankssssssssssss.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Regards,</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Karl </DIV>
<DIV>
<H1>[cisco-voip] No early media for ISDN->SIP->ISDN</H1><B>Andreas Granig</B> <A title="[cisco-voip] No early media for ISDN->SIP->ISDN" href="mailto:cisco-voip%40puck.nether.net?Subject=%5Bcisco-voip%5D%20No%20early%20media%20for%20ISDN-%3ESIP-%3EISDN&In-Reply-To=">a.granig at inode.at </A><BR><I>Wed May 12 09:52:19 EDT 2004</I>
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<!--beginarticle--><PRE>Hi,
I've a Cisco 5300 running firmware image c5300-js-mz.122-15.T12.bin that
interacts with SipExpressRouter (SER) from iptel.org.
Following scenario: a caller from ISDN calls a number which is routed
thru the C5300 to SER, where it is forwarded back to ISDN via the C5300
again. In this, and only in this scenario, the caller doesn't hear any
early media (no ringback, no announcements etc).
It works like charm when I for example call from a Cisco ATA to ISDN via
C5300 and vice versa.
When I configure "voice call send-alert" at the C5300, the PROGRESS is
converted to ALERT and I hear a ringback tone, but other early media
like announcements are also overwritten by a ringback tone.
I've also tried "progress_ind setup enable 3", 8 for alert and 8 for
proceed, without any success.
I've alread studied (hopefully) all available Cisco documentation (voice
commands for Firmware 12.2-T, the "Interworking Signaling Enhancements
for H.323 and SIP VoIP", the "PSTN Callers not Hearing any Ring Back
When they Call IP Phones", "Troubleshooting No Ringback Tone on
ISDN-VoIP (H.323) Calls" and so on).
Any hints?
Regards,
Andy
PS: I've attached the Q931-debug and here are also the relevant parts of
the C5300 configuration:
voice call send-alert
!
voice-port 0:D
input gain 2
echo-cancel coverage 32
echo-cancel suppressor
timeouts interdigit 3
!
dial-peer voice 9 pots
application session
destination-pattern 0.
no digit-strip
direct-inward-dial
port 0:D
!
dial-peer voice 99 voip
destination-pattern [1-9]...T
translate-outgoing calling 5
translate-outgoing called 1
voice-class codec 1
session protocol sipv2
session target dns:my.sipserver.com
dtmf-relay h245-signal
no call fallback
no vad
!
gateway
timer receive-rtcp 5
!
sip-ua
retry invite 2
retry response 2
retry bye 2
retry cancel 2
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