Topic Last Modified: 2011-01-31

To define the public switched telephone network (PSTN) gateway for a Survivable Branch Appliance at a branch site, specify the following:

If you want to add a PSTN gateway, you can set it up later, but full functionality will be limited until the PSTN gateway is defined and configured.

For additional details about designing a Mediation Server topology and specifying gateway information, see Define Mediation Servers for a Site in the Deployment documentation.