I recently integrated a Bogen PCM2000-B paging system with Microsoft Lync Server 2013 via an AudioCodes Media Pack 114 (FXS/FXO). On the Lync side, in voice routing, I created a rule in the dial plan that allowed the zones to be matched and passed to a PSTN usage that sent the call to the AudioCodes MP-114. The MP-114 was configured to match and route the call to one of the FXO ports. As simple as this sounds, there were some pitfalls and decisions to made regarding configuration along the way, which I’ve listed in detail below.
The Bogen paging system has a “PCM-TIM” module which is used to connect to the PBX / MP-114 providing the paging integration. This deployment originally had the Bogen integrated with an Avaya PBX via a 4-wire TN763 Aux Trunk. This did not work with the AudioCodes MP-114 out of the box.
I had to switch the Bogen PCM2000-B into a “2-wire” mode, which then uses a single pair for Tip and Ring. Now that the paging system was configured for FXS, I plugged the paging system into an FXO port on the MP-114. When dialing from a Lync client, I could hear confirmation tone and could page by pressing 00-04 while off hook.
If the MP-114 is in single stage dial mode, I dialed “00” to page all zones. As soon as I was connected (verified by the connected timer in the Lync client) audio was cut through and I could page. When dialing from the Lync client (00-04, which allows all zones and zones 1-4 to be paged) those exact digits were passed from Lync through the MP-114 to the paging system, with no need to dial any additional digits. However, no confirmation tone was heard.
If the MP-114 was configured to use two-stage dialing, when pressing “00” from the Lync client, the MP-114 goes off hook, confirmation tone is heard from the paging system, but then I had to dial the two-digit code again to page. In this case, the initial dial string gets the user to the paging system, and you are required to select the zone you want to page after the confirmation tone. In this mode, the audio took about 6 seconds to cut through once dialing the paging code.
So, my recommendation when using two-stage dial in the MP-114 would be to setup a feature access code (e.g. *8) in Lync, so that when dialed, it seizes the paging system allowing the user to dial the appropriate zone, following confirmation tone. When using single-stage dial, the MP passes exactly what was dialed in the Lync client to the paging system. This provides a quicker mode of paging without the confirmation tone, in turn cutting voice in more quickly. On the Lync configuration side, configure a range of digits to be matched / passed for each zone that the user will be paging.
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