[Asterisk-Users] TDM-400 and dialplan -- how to ring a SIP extension *before* answering the PSTN line?

[Time Bandit]

> > [incoming]
> > ; incoming calls from the FXO port are directed to this context from zapata.conf
> >
> > exten => s,1,Answer()
> > exten => s,2,Dial(SIP/polycom)
Try this

exten => s,1,Dial(SIP/polycom,20)
exten => s,2,Hangup()

I think this way, * won't answer the line until your SIP phone
answers. If you don't pickup the phone after 20 seconds it will just
ignore this incoming call

hth