OBiTALK Community

I trunked my OBI110's LinePort with a backend PBX.
I also hang the OBI's PhonePort on the PBX as an extension using SIP.

When a call comes in from PTSN,  I can pick up either from
1 - a phone on the PhonePort
2 - a SIP client connect to the PBX
3 - a phone directly connected to the PTSN line (hard line)

When there is a conversation going on via the Obi's PhonePort
I can pick up the call from a set directly connected to the PTSN line.

Is it possible to do the reverse? To interrupt and pick up a call
using the Obi/PBX when the call was initiated from the hard line?

If so, how would I go about setting it up?

The answer is maybe.

You can join the call from the OBi110 phone port.
Check EnableLINEPortBargeIn on the Phone Port configuration.
Now dial # (default to get dial tone on the line port) and you will join the call.

I assume you are sending the call from the PBX to the OBi110 via SIP and the OBi110 won't allow barge-in using this method. You have to get the call to the OBi110's phone port for this to work. I think you can do this with an extra OBi110. Connect the OBi110#2's line port to the OBi110#1's phone port with a telephone cord. Change the OBi110#2 DigitMap not to remove # when routed to the line port. Have the PBX route # to the OBi110#2.

I wanted to do this from the phone port before the barge-in option was available. Someone suggested reducing or increasing one of the voltage settings to trick the OBi110 to think the line port wasn't busy. This might work for you.

See replies 5 and 6 for solution and reply 7 for the drawback:
http://www.obitalk.com/forum/index.php?topic=80.msg198#msg198

azrobert,  that worked beautifully.  Thank you!
love the obi.