[cisco-voip] Incoming Call Issue

[Carter, Bill]

CSCee76615
 
Symptom:
--------
IOS Gateway running IOS 12.3(7)Tx and 12.3(8)Tx, with DSPware 4.3.16 and

later with NM-HDV/NM-HD-2V/AIM modules may experience one way audio 
intermittently.

One way audio problem starts to happen during the duration of the call. 
It may continue until the users disconnect the call. At times, one way
audio problem may clear up by itself during the call.

Condition:
-----------
This problem was observed in the following topology,

T1 
Analog/IP Phones ----- IOS Gateway ------- PSTN

In the above topology, the PSTN user may experience no audio problems. 
IP Phone user was able to hear the PSTN user through out the entire 
duration of the call.


Work-around:
------------
If possible, use IOS 12.3(7)Tx or 12.3(8)Tx running 4.3.15 DSPware.


  _____  

	From: King, Jesse [mailto:JKing at thegranitegroup.com] 
	Sent: Thursday, March 24, 2005 9:38 AM
	To: Voll, Scott; cisco-voip at puck.nether.net
	Subject: RE: [cisco-voip] Incoming Call Issue
	
	
	Can't recreate at will. Yes, opened a ticket with the Telco. It
does sound like a one way, but there is no voice going across in either
direction. I was able to have a bad test with my cell calling my IP
phone and no voice either way but the call was connected.
	 
	new install. 
	 
	Thanks.
	 
	 

  _____  

	From: Voll, Scott [mailto:Scott.Voll at wesd.org] 
	Sent: Thursday, March 24, 2005 10:39 AM
	To: King, Jesse; cisco-voip at puck.nether.net
	Subject: RE: [cisco-voip] Incoming Call Issue
	
	

	Can you recreate this at will?  Have you opened a ticket with
your Telco?  It almost sounds like a one way audio issue.  Is this a new
install or did this just start happening?  

	 

	I had an issue just a month or so ago where there was a one way
audio issue with California.  Might be worth a ticket with your local
telco.

	 

	scott

	 

	
  _____  


	From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of King, Jesse
	Sent: Thursday, March 24, 2005 7:27 AM
	To: cisco-voip at puck.nether.net
	Subject: [cisco-voip] Incoming Call Issue

	 

	CM 4.1(2), MGCP Gateway 3745, IOS ver 12.3.11t3, using a PRI

	 

	 

	Most calls coming in are fine. But sometimes a call comes in,
This is what happened - PSTN calling gets no ringing, but call rings on
7960 phone and is able to answer. No voice in or out is working. Call
will stay up until PSTN caller disconnects call because of no ringing or
conversation. 

	 

	I can't seem to narrow this down, and frankly not sure how to. I
did a debug of ISDN q931, and have the capture of a good and a bad, but
the look the same. So I suspect I am not debugging the right thing. 

	 

	Attached is the isdn q931 of the bad, then the good.

	 

	Any suggestions on where I could start?

	 

	Thanks guys.

	 

	Jesse

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