[cisco-voip] One Way Audio Issue with Phones Using ASA5520

[Wes Sisk]

if the ASA is doing NAT or PAT you need SCCP inspection enabled, 
otherwise disable it.  ASA must be upgraded to a version of that 
supports the SCCP version associated to your CM server.  ASA must be 
located at a point in the network where it can see all signaling traffic 
relvant to the call in order to open appropriate ports.

Generally for a call that goes:
pstn---voice gateway-----cm----phone
the media path will be:
voice gateway------phone

This changes in case of conference, MTP, transcoders, music on hold, and 
any other supplementary service.

/Wes

On Thursday, August 27, 2009 9:36:59 AM , Miller, Steve 
<MillerS at dicksteinshapiro.com> wrote:
> We have a remote phone which is connected and everything is working, 
> except that we have a one way audio issue where the ASA remote phone 
> can hear us, but we can't hear him.  What path does the Call Manager 
> use route the incoming voice transmission?  Any suggestions would be 
> helpful.
>  
>
> *Steve Miller*
> Telecom Engineer
> Dickstein Shapiro LLP
> 1825 Eye Street NW | Washington, DC 20006
> Tel (202) 420-3370| Fax (202) 330-5607
> MillerS at dicksteinshapiro.com <mailto:MillerS at dicksteinshapiro.com>
>
>  
> --------------------------------------------------------
> This e-mail message and any attached files are confidential and are intended solely for the use of the addressee(s)
> named above. This communication may contain material protected by attorney-client, work product, or other 
> privileges. If you are not the intended recipient or person responsible for delivering this confidential
> communication to the intended recipient, you have received this communication in error, and any review, use, 
> dissemination, forwarding, printing, copying, or other distribution of this e-mail message and any attached files 
> is strictly prohibited. Dickstein Shapiro reserves the right to monitor any communication that is created, 
> received, or sent on its network.  If you have received this confidential communication in error, please notify the 
> sender immediately by reply e-mail message and permanently delete the original message. 
>
> To reply to our email administrator directly, send an email to postmaster at dicksteinshapiro.com
>
> Dickstein Shapiro LLP
> http://www.DicksteinShapiro.com
>
> ==============================================================================
>   
> ------------------------------------------------------------------------
>
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>   

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/cisco-voip/attachments/20090827/36f9ada5/attachment.html>