Hello,
I have a TE410P connected to a telco on port1 and legacy Matra pbx on 
port2.
When calling an extension managed by the legacy pbx through the telco (with a
normal pots phone), I get ringing. However when calling that same extension
through a SIP phone, no ringing is heard. 
Here is the output:
	-- Executing Dial("SIP/tmm1-9463", "Zap/g2/4530||") in new
stack
    -- Requested transfer capability: 0x00 - SPEECH
    -- Called g2/4530
    -- Zap/33-1 is proceeding passing it to SIP/tmm1-9463
    -- Zap/33-1 is ringing
and the exten:
	exten => _45XX,1,Dial(Zap/g2/${EXTEN}||)
"g2" being port2 on the TE410P.
I tried adding "R" to the Dial() options to no avail.
What could the problem be?