[cisco-voip] IOS 15 Bug - CSCtf08864

[Lelio Fulgenzi]

I know if I asked my service provider for option I they would look at me like an alien. 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
Cooking with unix is easy. You just sed it and forget it. 
- LFJ (with apologies to Mr. Popeil) 


----- Original Message ----- 
From: "Tim H" <TimH at trstone.com> 
To: "cisco-voip voyp list" <cisco-voip at puck.nether.net> 
Sent: Thursday, April 29, 2010 8:19:01 AM GMT -05:00 US/Canada Eastern 
Subject: Re: [cisco-voip] IOS 15 Bug - CSCtf08864 




Looks like they have some valid workarounds now: 

Workaround: 
=========== 
( I) Ask the service provider to send flags between frames instead of idle 
marks. Idle marks [11111111] may be sent to fill the gap between useful 
frames. Alternatively, a series of flags [01111110] may be transmitted to 
fill gaps between frames instead of transmitting idle marks [11111111]. 
Continuous transmission of signals is required to keep both the 
transmitting and receiving nodes synchronized. 

(II) If (I) above is not possible an IOS image with a candidate fix is 
available. The candidate fix has a high confidence level of resolving the 
PRI voice call issues described above, and has proven to be successful in 
several field deployments complaining of similar call problems. Please 
contact the Cisco Technical Assistance Center (TAC) for details on 
obtaining the candidate fix. 




Tim 





From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Bernhard Albler 
Sent: Tuesday, April 27, 2010 12:51 PM 
To: cisco-voip voyp list 
Subject: Re: [cisco-voip] IOS 15 Bug - CSCtf08864 





Hi guys, 

for info: 
I have been hitting the issue at one of our customer sites. Actually did switch back to a 28xx for now. The good news: we now have a fix (via a test release), that seems to fix the whole mess. So if you are hitting this get in contact with TAC, they should be able to help you. 


regards 
bernhard 






------------------------------------------ 
Bernhard Albler, CCIE #23747 (Voice), NTS AG 
Tel.: +43 (1) 867 6776 -516, email: balbler at nts.at 



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