System information

Deployment Guide for Siemens Enterprise Communications OpenScape Environments

• Alternate Gatekeepers This field is not configurable and displays the alternative gatekeeper as a

FQDN or by IP address.

Using Polycom’s On Demand Conferencing Solution

Polycom's on demand conferencing solutions let you hold calls and conferences on the fly without

making plans or reservations in advance. Polycom offers a number of collaboration solutions that enable

rapid decision making and improved responsiveness. To find out more, see

Polycom On Demand

Conferencing Solution.

To place calls using on demand conferencing:

1 Register your Polycom HDX system with a Polycom gatekeeper. A Polycom RMX® system must be

configured with the gatekeeper to provide the On Demand Conferencing solution.

2 Enable Use PathNavigator for Multipoint Calls.

3 Create a group in the directory (recommended).

When using On Demand Conferencing, once the call begins, you cannot add another site to the call —

even if the site was in the call originally. Note that the Polycom RMX system must have enough ports

available to complete the call.

• Gateway A gateway performs code and protocol conversion between H.323 (IP), SIP, and H.320

(ISDN), so that users on different networks can call one another. If you configure the HDX system

to use a gateway, you must configure it to use a gatekeeper.

○ Country Code Specifies the country code for the system’s location.

○ Area Code Specifies the area or city code for the system’s location.

○ Number Specifies the extension that identifies this system for incoming gateway calls.

○ Gateway Number Type Use this field to change the default H.323 extension. Choose one of

the following options:

» Number + Extension Choose this option to have users dial in to the HDX system using the

gateway number and HDX system extension number.

» Direct Inward Dial Choose this option to have users dial in to an HDX system directly using

an internal extension number. If you choose this setting, you must also register the number

with the gatekeeper as an E.164 alias.