Summary:ASTERISK-17033: Blind transfer not working from DAHDI to SIP-to-SIP
Reporter:Michael Gaudette (bluefox)Labels:
Date Opened:2010-11-26 23:10:26.000-0600Date Closed:2010-12-06 16:43:03.000-0600
Versions:Frequency of
Description:Blind transfers hang up. 100% reproducible on my system.  Not a problem on, but the problem exists on

****** STEPS TO REPRODUCE ******

An incoming DAHDI call to a Polycom phone.  Press Transfer, then blind, then any extension that transfers to a SIP phone (including a blind transfer to the exact same SIP account).  Call will hangup.

The exact same steps will work fine on


Console output, verbose 3.  In this case calling extension 200, blind transferring to extension 200 again.  But any blind transfer will fail.

== Using SIP RTP CoS mark 5
   -- Called SIPACCOUNT__A
   -- SIP/SIPACCOUNT_A-00000019 is ringing
   -- SIP/SIPACCOUNT_A-00000019 answered DAHDI/6-1
   -- Started music on hold, class 'default', on DAHDI/6-1
   -- Stopped music on hold on DAHDI/6-1
 == Spawn extension (internal-transfer, 200, 1) exited non-zero on 'DAHDI/6-1'
   -- Hungup 'DAHDI/6-1'

Comments:By: Richard Mudgett (rmudgett) 2010-11-29 11:15:03.000-0600

This appears to be a duplicate of issue ASTERISK-16847.  Please try the SVN 1.6.2 branch to see if this resolves your issue.

By: Michael Gaudette (bluefox) 2010-12-06 16:14:06.000-0600

SVN works fine, thank you.