[Asterisk-Users] Support for SIP REFER message

George K. Konstantoulakis gkon at inaccessnetworks.com
Thu Mar 10 09:58:38 MST 2005


If you are using VoxNauta Lite there is a bug with the VoIP plugin ask them
for an update.

George


Gilbert Abboud wrote:

>Hi to all,
>
>I am sending a SIP REFER message to Asterisk from a VoiceXML application using the <Transfer> element to do a Transfer through Asterisk. 
>I need to know if Asterisk supports the full features of the SIP REFER message because if i set 'bridge=true'
>in the <transfer> element of the VoiceXML application to supervise the call, Asterisk sends a NOTIFY message with 'subscription-state: terminated" to the VoiceXML application as if it was a blind transfer (bridge=false). 
>Usually, when 'bridge=true' is set in the <transfer> element, the end point that receives the SIP REFER (i.e Asterisk) should send a SIP NOTIFY to the VoiceXML application with 'subscription-state: active' to let it supervise the call and then the endpoint should send Follow-On NOTIFY messages to let the VoiceXML application know the status of the call (no answer,busy,...). 
>
>Thank you in advance for your help.
>
>Gilbert Abboud
>M.Eng. Computer Engineering
>Programmer Analyst
>Excendia, Montreal
>ESN: 514-765-8490
>
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