[asterisk-bugs] [Asterisk 0019196]: Can't provide secure audio requested in SDP offer

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
====================================================================== 
https://issues.asterisk.org/view.php?id=19196 
====================================================================== 
Reported By:                stefanero
Assigned To:                
====================================================================== 
Project:                    Asterisk
Issue ID:                   19196
Category:                   Channels/chan_sip/SRTP
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.8.3.2 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
====================================================================== 
Date Submitted:             2011-04-28 08:29 CDT
Last Modified:              2011-04-28 09:25 CDT
====================================================================== 
Summary:                    Can't provide secure audio requested in SDP offer
Description: 
Hello,

I am running * version 1.8.3.2 on opensuse 11.3 x86_64

we have a lot of Voice over WLan phones attached to our * , which use * as
a generic gateway to our Nortel CS1KE (rel 5.5).

I wanted to upgrade from * 1.6.0.24 to latest 1.8.X version.

when now calling from SIP phone to Nortel everything is okey, all calls
work no problem.

but when I want to transfer an existing wlan-nortel call to a 2nd nortel
phone I get an error in the asterisk console.
also the RTP stream is dead on both ends, and noone can hear the other.
====================================================================== 

---------------------------------------------------------------------- 
 (0134231) stefanero (reporter) - 2011-04-28 09:25
 https://issues.asterisk.org/view.php?id=19196#c134231 
---------------------------------------------------------------------- 
Hi,

well thing is, we use the same Nortel Gateway with asterisk 1.6.0.24 and
its working fine. 

There is no srtp support in 1.6.0.24.
The nortel might offer srtp to asterisk, but instead of trying to get a
connection asterisk should just decline it and use RTP instead. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2011-04-28 09:25 stefanero      Note Added: 0134231                          
======================================================================