Isdn/Pstn Network Services - Polycom RMX 1500 Administrator's Manual

ISDN/PSTN Network Services

14-48
To enable ISDN and PSTN participants to connect to the MCU, an ISDN/
PSTN Network Service must be defined. A maximum of two ISDN/PSTN
Network Services, of the same Span Type (E1 or T1) can be defined for the
RMX. Each Network Service can attach spans from either or both cards.
Most of the parameters of the first ISDN/PSTN Network Service are
configured in the Fast Configuration Wizard, which runs automatically if an
RTM ISDN card is detected in the RMX during first time power-up. For
more information, see the RMX 1500/2000/4000 Getting Started Guide, "First
Entry Power-up and Configuration" on page 2-22.
Supported Capabilities and Conferencing Features:
• ISDN video is supported only in Continuous Presence (CP)
conferences.
• Only BONDING (using multiple channels as a single, large
bandwidth channel) is supported.
• Simple audio negotiation.
• Supported video resolutions are the same as for IP.
• Supported video Protocols are the same as for IP: H.261, H.263,
H.264.
• H.239 for content sharing.
• Lecture Mode.
• DTMF codes.
• Securing of conferences.
• Basic cascading between two MCUs using an ISDN link is available
and forwarding of DTMF codes can be suppressed.
Non Supported Capabilities and Conferencing Features:
• NFAS (Non-Facility Associated Signaling)
• Leased line usage
• Restricted Channel mode
• Aggregation of channels
• V.35 serial standards
• Primary and secondary clock source configuration (they are
automatically selected by the system)
• Auto detection of Audio Only setting at endpoint
Chapter 14-Network Services