|Telephony High Availability|
Telephony is supported in multiple facility environment.
A single Vocera SIP Telephony Gateway (VSTG) can service multiple facilities.
The VSTG uses a SIP trunk to communicate with a PBX. You must install and configure a VSTG for each PBX that Vocera will use. When your Vocera deployment supports multiple facilities, you can accommodate any of the following configurations:
An environment where each facility has its own PBX.
Enable and configure a VSTG for each facility.
An environment where facilities that do not have their own PBX share with facilities that do have a PBX (the principal facilities). \
Enable and configure a VSTG for the principal facilities only.
A mixed environment where some facilities (the principal facilities) have their own PBX, and other facilities share a PBX with a principal facility.
Enable and configure a VSTG for each principal facility.
If any facility—including the Global facility—does not have telephony enabled or does not share a PBX with a principal facility, the facility will not have telephony access.
You can configure VSTGs in a cluster configuration for a different facility, other than Global, provided both VSTGs are in the same facility.