This is using FreePBX to control the dial plan, so can't really make that modification without major changes - thanks for the suggestion tho'

Martin

Matthew Mackes wrote:
Try placing an Answer() as the first line in your extensions.conf for your extensions you are transferring to.

Matt
Buffalo




Martin Glazer wrote:
Hi All,

We are running version 1.2.26 of Asterisk using Aastra 480i phones - we are having problems doing blind (or unattended) transfers - what happens when transferring is that the destination phone rings, we hit transfer again and the call drops. If the person answers before we hit transfer again (attended), then the transfer goes through.

We are using the transfer button on the Aastra's.

In the logs, I see this message (transfer from 7900 to 7303)

2009-08-26 12:22:12 DEBUG[15287] chan_sip.c: Unsupervised transfer to (Refer-To): 7303 2009-08-26 12:22:12 DEBUG[15287] chan_sip.c: Transferred by (Referred-by: ) 7900 2009-08-26 12:22:12 DEBUG[15287] chan_sip.c: Transfer Contact Info My-Company <sip:[email protected];transport=udp> (REFER_CONTACT)
2009-08-26 12:22:12 DEBUG[15287] chan_sip.c: 202 Accepted (blind)
2009-08-26 12:22:12 DEBUG[15287] chan_sip.c: Got SIP blind transfer but nothing to transfer to. 2009-08-26 12:22:12 DEBUG[31400] channel.c: Scheduling timer at 0 sample intervals


From my limited knowledge, in a SIP trace, it looks like the phone requesting the transfer, cancels the request before the 2 phones are connected - not sure why it would do this.

I've searched for the error in the logs, but not found any solutions.

Any thoughts or ideas in tracking this down?

Thanks

Martin



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