Configuring Gateway Only Settings

If you are using the H.323 interface as a gateway, you might want to set registration time-out and address prefix parameters.

To configure gateway only settings:

registration-ttl—Enter the number of seconds before a registration becomes invalid. This value is used during the initial registration process. However, when a registration is confirmed, the time-to-live (TTL) value set by the gatekeeper in the Registration Confirm (RCF) message overrides this value. The default value is 120. The valid range is:
- Minimum—0
- Maximum—4294967295
prefixes—Enter a list of prefixes for this H.323 interface. Possible prefix types include:
- H.323 ID | E.164 | URL | IPv4 address
  
  These prefixes are sent from a gateway interface to a gatekeeper and indicate valid prefixes accepted by that interface for incoming calls. They are used if the interface is configured as a gateway (the is-gateway parameter is set to enabled).
  
  Your entries for this parameter must appear as they do in the following example:
```
e164=17817566800 url=http://www.companyname.com
h323-ID=xyz email=user@companyname.com
ipAddress=63.67.143.4:2000
```