Version 7.2 319 Mediant 800B Gateway & E-SBC
User's Manual 15. Services
a. Open the Gateway Advanced Settings page (Setup menu > Signaling & Media tab >
Gateway folder > Gateway Advanced Settings).
b. From the 'E911 Gateway' drop-down list (E911Gateway), select Location Based
Manipulations.
Figure 15-61: Enabling Location-based Emergency Routing
2. In the Destination Phone Number Manipulation for IP-to-Tel Calls table (see 'Configuring
Source/Destination Number Manipulation' on page 555), add the following two rules for
manipulating the destination number of incoming emergency calls, based on ELIN numbers:
Figure 15-62: Configuring Destination Number Manipulation Rules for Location-Based Emergency
Routing
Index 0 manipulates the destination number for London emergency callers; Index 1
manipulates the destination number for Manchester emergency callers.
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