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When doing call transfers using SIP you shoudl use the following SDK functions: CallDeflection - this is effectively a BlindTransfer and will result in a 302 Redirect being sent back to the calling party. The calling party will then re-invite to the new destination. Please note that you shoudl not use...
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If you want to keep both channels open during the life of the call then you can use the SDK Interconnect function. This joins the two calls together through the Diva board and also means that you can record the conversation, listen to dtmf, take calls back, disconnect calls etc so gives you full control...
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Generally DivaResultNotSupported means that the API was notified by the Diva card that it had an ISDN message saying that the transfer attempt was not supported. Does the PBX you are connected to support transfer ? What line protocol are you using QSIG or ETSI or ?
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Hi, and thanks for qucik reply. Sorry, but I'm using the Dialogic ® Diva ® Components API (DIVASDKLib). I understand that both channels within a device belongs to the same physical port and therefore the same physical line, and that there are no chance to get a channel that goes to the PBX...