>> This question can be separated into two part:
>> 1.Pass a call to another FS

>uuid_deflect or uuid_transfer, depending on whether the call has been answered
>by the first FS instance or not. See the wiki.
>>
>> 2.Receive a call from another FS

>Provide a dial plan entry in the second FS that handles the call appropriately
>after the deflect or transfer.

>You haven't explained what you're trying to do - a general question warrants a
>general answer. I am assuming the call is arriving at one FS system, and
>(before or after answering it), you want to move it to another FS system.
>That's the question I've answered above. The wiki documents the syntax.

 

SorrySorry,let me explain my question.

 

When User1( User of FS1 ) call User2( User of FS2 ) ,

 

FS1 will pass the call to FS2 before answering,

 

and then User1 can talk with User2.

 

-Brad