Can I "un-transfer" 2 existing channels with Asterisk?

Question

I have 2 phones connected after transfer action and now I want to "un-trasfer" them both and put them on hold listening to background music. I've tried to park, call a phantom number, etc. But every time the second phone (the one that does not perform the action) hangs up.

Can I do this without a conference call? Thanks in advance!

Answer 1

Finally I did it! @arheops gave me the key with his note. I must do: With A and B speaking Redirect both channels to waiting:

Action: Redirect    
ActionID: 1234  
Channel: Channel1  
ExtraChannel: Channel2  
Exten: 000000001  
ExtraExten: 000000001  
Context: default  
ExtraContext: default  
Priority: 1  
ExtraPriority: 1

In extensions.conf I wrote a "waiting" called "on_hold" extension:

[on_hold]  
exten =>s,1,Answer()  
exten =>s,2,BackGround(onholdmusic)  
exten =>s,3,goto(on_hold,s,2)  
exten =>h,1,HangUp()  

Now A and B are listening to music(onholdmusic), then you can call C and bridge B with C. A keeps waiting listening to music until another bridge/hang up/other action is done.

Thanks!

Answer 2

Yes,you can use using ami action "Transfer", not it will transfer second one to n+1 prio,so you have create special context.

Read this first http://www.voip-info.org/wiki/view/Asterisk+manager+API

After that consult this:

http://www.voip-info.org/wiki/view/Asterisk+manager+Example:+Transfer

http://www.voip-info.org/wiki/view/Asterisk+Manager+API+Action+Redirect

Note, to do 2 channels same time in 1.6+ you have use ExtraChannel variable.