Site Topology Set Up Setting Up Site Topology
Polycom, Inc. 405
E164 Start • The starting number in a range of available
extensions to assign automatically to IP devices.
• When a device without native ISDN registers, a
number within the start and end range is assigned,
so that the device can be called through an ISDN
line.
E164 End The ending number in the range of available
extensions to assign automatically to IP devices.
H.323 Routing
Internet calls are not
allowed
Disables call routing through the Internet.
Allowed via H.323
aware firewall
Enables call routing through the Internet, using an
H.323-aware firewall.
Notes
• For an outbound call to the Internet, you must
enter the firewall gateway service (e.g. a Polycom
VBP appliance) code before the IP address in the
dial string.
• If you select Allowed via H.323 aware firewall you
must create a site link between this site and the
Internet/VPN site.
Allowed via H.323
aware SBC or ALG
Enables call routing via the Internet, using an
H.323-aware SBC (Session Border Control) or ALG
(Application Level Gateway) server.
Note
For an outbound call to the Internet, you must enter
the firewall gateway service (for example, a Polycom
VBP appliance) code before the IP address in the dial
string.
Call Signaling IP
Address
IP address of the SBC or ALG server. Supports only
IPv4 addresses.
Port Port address of SBC or ALG server.
Field Description
