Frogger writes:
**This does NOT work**
PSTN phone calls SIP-ua1
SIP-ua1 transfers pstn phone to final-callee: SIP-ua2
Basically, if sip-ua1 is the primary caller, the transfer works. If pstn gw is the primary caller, the transfer does not work.
are you sure that your pstn ge support refer? if yes, turn debug on and see what it is doing when it receives refer.
-- juha