1. There are 4 Incoming CO lines connected to SohoPbx unit (these are the lines from the phone company)
2. I then hooked the 3 phones (2 lines each) in our office into the first 6 extension port on the SohoPBX. (Ext 601-607)
3. I hooked the USB CAHTA telephone card into four extensions on the Soho PBX (Ext 620,621,622 and 623)
4. I set the IVM to answer after 3 rings
5. I set one extension on each phone to ring on all incoming CO lines.
6. As for the extension connected to the CAHTA card, I only set one extension (620) to ring on incoming calls. THis way, if we dont pick up or if its after hours, it will pick up the call. I have ext 621,622 and 623 set to not ring on inciming calls.
7. I then set extension 620 to transfer the call to extension 621 if 620 is busy, then set 621 to transfer to 622 if 621 is busy, etc. This way, if someone is already leaving a voicemail, the next line on the CAHTA card will be activated.
8. To transfer a call to voicemail, i simply press "Transfer" on my phone and dial extension 620 and hang up. The person will hear music on hold whil the extension 620 rings (3 times), once the IVM software picks up the call, the music on hold quits and the person is in the voicemail system.
It truly works wonderful.........