Shared Telephony Deployment Scenarios

The following scenario shares a telephony server between sites. In this example, the telephony server uses the PBX at site A. The telephony server is shared with site B, which may or may not have its own PBX. Because a single telephony server instead of an array of telephony servers is installed at site A, high availability features are not supported.

Figure 1. Multiple Site Scenario Using 1 PBX
Summary  
Sites: Multiple
Telephony Sharing: Yes
High Availability: No

The following scenario is a variation of the previous one. An array of telephony servers has been added, which provides redundancy, scalability, and load balancing.

Figure 2. Multiple Site Scenario Using 1 PBX and a VSTG Array
Summary  
Sites: Multiple
Telephony Sharing: Yes
High Availability: Yes