Incoming POTS calls dropped when going to AA/VM, plar/plar opx
I am having problems with incoming PSTN calls. I have the voice-port setup to 'plar opx' to a hunt group. the hunt group rings fine, but the call drops when it is time to transfer to AA (final for the hunt group).
I think it's a dial-peer problem, but I'm not sure what to do about it.
I've noticed that if i change from 'plar opx' to just 'plar', it works fine. what are the differences between plar and plar opx, and how could it cause this behavior? should i just leave it at 'plar' or should it really be 'plar opx'? I haven't noticed any side effects, yet.
Specifies a PLAR off-premises extension (OPX) connection. Using this option, the local voice port provides a local response before the remote voice port receives an answer. On Foreign Exchange Office (FXO) interfaces, the voice port does not answer until the remote side has answered.
If you didn't have any of the PLAR commands on the voice-port then the router will answer the incoming call after the first ring and present a dial-tone. (two-stage dialing.) The router is in essence expecting DTMF digits to be played. You can manually dial an extension to ring the final IP Phone.
You are not looking for that. The PLAR command will pickup the voice-port after the first ring then send the digits of the plar command to the router--matching an incoming-called number command.
OPX prevents the Voice-port from going off-hook after the first ring. It will only go off hook after the IP Phone goes off hook
This is useful when other devices share the POTS line, like an answering machine or cordless phone, which might want to answer the phone by themselves.
But may not work for hunt-groups or other entities that don't send an off-hook message.
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