Polycom RealPresence Resource Manager System Operations Guide Site Topology Set Up
406 Polycom, Inc.
Send Unmodified Dial
String to SBC/ALG
Select this option if your SBC or ALG requires that the
original dial string is passed to it. For example, an
H.323 Annex O dial string such as
user@company.com is passed directly to the SBC or
ALG instead of resolving company.com to an IP
address.
Deselect this option if your equipment requires a dial
string that is converted from company.com to
gatekeeper IP address. This option is appropriate for
the Polycom VBP.
SIP Routing
Internet calls are not
allowed
Disables call routing through the Internet.
Allowed via SIP aware
firewall
Enables call routing through the Internet, using an
SIP-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 SIP aware firewall you
must create a site link between this site and the
Internet/VPN site.
Allowed via SIP aware
SBC or ALG
Enables call routing via the Internet, using an
SIP-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.
Subnets
Field Description
