The RG 8700 SMG (Survivable Media Gateway) provide scalable and standards-based gateway platforms that mediate TDM (Time Division Multiplexing) traffic (in circuit-switched, fixed, or mobile switching networks) to the packet world with carrier-grade reliability.
In a typical business environment with geographically distributed branch offices or hoteling locations, MGs (Media Gateways) will be located at the outlying locations to ensure that, in the event of a WAN failure or where the Lotus Sametime Unified Telephony can no longer be reached, communications with the customers or HQ personnel is still possible over the PSTN (Public Switched Telephone Network) and to ensure that the impact of the outage is minimal. The goal of the survivable gateway is to provide cost effective, temporary, basic communications with the outside world.
The RG 8700 Version 1.3 offers the following hardware versions:
|8716||Simplex||16||368 or 480|
|8716||Duplex||32||736 or 960|
|8708||Simplex||8||184 or 240|
|8708||Duplex||16||368 or 480|
|8702||Simplex||2||46 or 60|
|8702||Duplex||4||92 or 120|
Each hardware version provides seamless normal and Survivability Modes with continuous 911 access; automatically invokes Survivability Mode when host connection is lost and continues to maintain active calls and 911 services while handling the switching of new calls. In addition, redundancy provides backup and additional routing options during survivability.
RG 8700 survivability is accomplished with the use of SIP phones that are registered with the Lotus Sametime Unified Telephony during normal operation and also with the RG 8700 (dual registration phones such as the optiPoint 410S, 420S and OpenStage are required). When the RG 8700 senses that it can no longer communicate with the Lotus Sametime Unified Telephony, it transitions to its Survivable Mode thus allowing those optiPoint SIP phones that are dual-registered to maintain access to the PSTN trunks.
System Specific Information
The RG 8700 SMG provides the following features in Survivability Mode:
Basic calling (SIP to SIP, SIP to PRI, PRI to SIP)
Emergency calling (E911)
CDR (Call Detail Recording) during the outage
Number modification for convenient dialing
Keyset prime line operation only
DSS (Direct Station Selection) key
The RG8700 gateway provides the following phone based features:
Currently, only the Lotus Sametime Unified Telephony optiPoint 410/420 and OpenStage SIP phones with dual registration software are supported.
Call forward (unconditional, busy, no answer)Parent topic: Survivability Overview
HNG (Hunt Group)
CDR (Call Detail Recording)
Geo-Redundancy - Direct Connection of RG 8700 to Lotus Sametime Unified Telephony
Geo-Redundancy - Connection of RG 8700 to Lotus Sametime Unified Telephony via SIP Proxy
Geo-Redundancy - Direct Connection of RG 8700 to the Virtual Address of Lotus Sametime Unified Telephony
Geo-Redundancy - Connection of RG 8700 to the Virtual Address of Lotus Sametime Unified Telephony through a SIP Proxy
Hold and retrieve
Consultation and transfer
Do not disturb
Local conference (if configured)