Hi,
I am trying to understand why some of my call transfers fail.
My scenario is as follows:
Legacy PBX1 ---PRI (EuroISDN) Zaptel--- Asterisk PBX2
Step1: PBX1 extension 101 calls PBX2 extension 102
Step2: PBX2 extension 102 answers the call and transfers it to PBX1 extension
103
Step3: PBX1 extension 103 answers the call and transfers it to PBX2 extension
104
Step3 fails and extension 103 is reconnected to 101.
Why is Step3 failing and how could I change my setup so the transfer succeeds?
As a side question, I'd like to know if I could "free" the "unnecessary" zap
channels created in Steps 1 and 2.
On analog channels I could SendDTMF(${EXTEN}). I don't know how to do that on a
digital pri line and if it requires that the legacy PBX be compatible.
Anyway, I'm not too worried about freeing the PRI channels. I just want "Step3"
to work.
Is it possible, "somehow"?
Thanks in advance,
Vieri
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