remote office and pbx
Posted on 2012-08-28
We have an Avaya IP Office 500 pbx in our main office that is setup to use both digital and voip phones. We also have a remote office (no pbx) with a vpn connection to our main office. I have two questions:
1. What is the benefit of installing a pbx in the remote office? The requirement is to have users to be able to call locally using their new ip phones and to be able to call the main office by dialing 4 digits. The same goes for calling from the main office, the requirement is to be able to call a local number in the remote area site from the main site as well as a 4 digit ext to the employee.
So how does it technically work? If I'm in the main office and dial a local number at the remote site, it goes through the vpn connection and the pbx there would pass it off as a local call through their pbx to a local line (analog or T1)to the destination number locally, but if I call a user there using the 4 digit extension their pbx just passes it to their externsion in the office. And the same would be from the reverse of them calling from there to here, correct?
2. Instead of installing a pbx in the remote location, is there anyway to accomplish this requirement? Perhaps there is software available from the local ISP that can accomplish this or some other software or soultion which would not require a pbx?