SPA8000: attended transfer with FLASH does not work
I'm having trouble with attended transfers on phones connected to an SPA8000.
If an SPA phone A calls another SPA phone B which in turn, picks the call up and subsequently presses the R key (Flash) and dials another SPA extension C until C picks the phone up and B hangs up, then caller A can talk to caller C (attended transfer is OK).
However, if C is any other type of extension (SIP softphone, ZAP extension Â¡, etc) then when B hangs up, the call to C drops and B "rings back" with caller A.
The only way I found to a successful attended transfer if C is not an SPA8000 extension is for B to dial *2 (Asterisk's built-in attended transfer feature).
If I compare the SPA8000 to Grandstream's GXW4008, with the latter, attended transfers with Flash work fine as described above. I would like to have the same behavior on the Linksys SPA8000. Is it possible?
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