Sharing T1 between two branches

A multinational pharmaceutical company had been facing many problems because they had to separate their Marketing and Production department due to statutory reasons, but in order to minimize the cost they wanted that this should be done while retaining their existing phone numbers as they were already known to customers. They were having T1 lines which could carry 24 digitized voice channels. Those departments were having some selected users who had direct incoming numbers and the rest of users were reachable via Receptionist or IVR.

As they implemented an IPPBX, it allowed them to solve their problems and they also got many other features which further enhanced their productivity and reduced their OPEX.

Apart from the basic features there were some additional features like:-

1. Directory-Which allows users to search the phone numbers by names.
2. Click to call-facility for outlook
3. Time interval setting-Which means the calls get connected to home extensions of senior
management and after office hours will be diverted to IVR.
4. Dial Plan-To decide that how the incoming calls can be routed when someone is calling from
outside.