[asterisk-bugs] [Asterisk 0018206]: [patch] Hold/Unhold not possible with SIP using SRTP

Asterisk Bug Tracker noreply at bugs.digium.com
Tue Nov 2 09:40:53 CDT 2010


The following issue has been UPDATED. 
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https://issues.asterisk.org/view.php?id=18206 
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Reported By:                bernhards
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18206
Category:                   Channels/chan_sip/SRTP
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     confirmed
Asterisk Version:           1.8.0 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-10-25 03:31 CDT
Last Modified:              2010-11-02 09:40 CDT
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Summary:                    [patch] Hold/Unhold not possible with SIP using SRTP
Description: 
2 phones connected with SIP on Asterisk. Both are configured with SRTP.
Call from phone A to phone B. Then A press "hold" and after 20 seconds, A
press unhold. Then there is no voice from A to B and also no voice from B
to A. On the console I get the error:

res_srtp.c:338 ast_srtp_unprotect: SRTP unprotect: replay check failed
(index too old)

If the hold time is less (e.g. not 20 seconds but 2 seconds) it does
_sometimes_ work.

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Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-11-02 09:40 lmadsen        Description Updated                          
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