RG 2700 is a survivable media gateway (SMG) with a built-in router for cross-site networking. It is designed to facilitate the connection of branch offices to the central corporate network and the use of network-wide resources by the branch offices. In organizations with a head office and small/medium-sized branch offices, the gateway provides a guaranteed connection to the central Lotus Sametime Unified Telephony system for up to 30 subscribers in branch offices.
System Specific Information
RG 2700 provides survivability functions for branch office SIP telephones in company-wide networks with Lotus Sametime Unified Telephony.
RG 2700 has a SIP proxy for setting up connections and a SIP registrar for locating SIP users. This ensures that SIP phones remain in operation even in a survivability scenario.
Parent topic: Survivability Overview
If the VoIP connection to Lotus Sametime Unified Telephony fails, a call over the PSTN is automatically set up and can be used for telephony.
The following features are available in survivability mode: toggle/connect, consultation hold, call transfer, call rejection, hold (a connection), interconnection (of connections), call waiting (second call), call waiting rejection (second call), and three-party conference (local conferences only).
If emergency call and speed-dial numbers are configured for RG 2700, outgoing calls from branch stations are routed directly to the associated number in survivability mode.
In survivability mode, accounting data is saved locally by RG 2700 and made available to Lotus Sametime Unified Telephony applications.
RG2700 Media Gateway Survivability - Failure Case