Multi-Tech Systems MVP210/410/810-SS, MVP210/410/810-FX manual Registrar Options

Chapter 4: Configuring your VOIP

SIP Server Configuration

The MultiVOIP 210/410/810-SS models have the additional capability of SIP survivability. The settings for SIP server mode are detailed below.

Figure 4-15: SIP Server configuration

Field Name	Values
Operating	Survivability
Mode	-or-
	stand-alone

Survivability	Register,
Status	Options
Check

Registrar Options

Allow	Y/N
Undefined
Registrations
Accept	any/specific
Registrations	domains
for:
Domain	name
Names
Accept	n.n.n.n
Registrations	-or-
for:	any IP
	addresses
IP	n.n.n.n
Addresses
Re-	in seconds;
Registration	(default is
Time	3600)

SIP Server Configuration Parameter Definitions

Description

In “Survivability” mode, the MVP-SS unit can function as a SIP server for other gateways in its network in case that network loses contact with the network’s main SIP server (typically a PBX). When in “Survivability” mode the unit is a backup SIP server. In “Stand-Alone” mode, the MVP-SS functions as a primary SIP server for other gateways. In this mode, the MVP-SS operate to technical advantage with ‘smart’ SIP phones. Such smart SIP phones can choose the SIP server under which they operate and, consequently, can be controlled by either the SIP-based PBX or by the MVP-SS

One of two status-check packets is sent to the main SIP Proxy servers to which the MVP-SS serves as a backup. This packet determines whether the MVP-SS needs to take over SIP server functions or stay in its normal backup mode. “Options” and “Register” are two distinct SIP request “methods.” The Options method solicits information but does not set up a connection. The Register method conveys information about a user’s location to the SIP server. The “Register” method may entail more data overhead than the “Options” method. If both of these methods are supported by your SIP server, it is OK to use either one. If only one is supported, use the supported method.

If undefined registrations are allowed, then gateways other than those listed in the Predefined Endpoints list can register with the MVP-SS unit as it functions in its SIP server mode. If undefined registrations are not allowed, then incoming registrations will be allowed if they originate from endpoints at accepted domains or IP addresses.

Defines if registrations to the MVP-SS SIP server will be accepted from any domain or only from specified domains. Multiple domains can be listed, separated by semicolons. The “any domains” option is intended for private networks not accessible via Internet.

Endpoints (separated by semicolon) from which the MVP-SS will accept registrations.

Determines whether registrations to the MVP-SS SIP server will be accepted from any IP address or only from specified IP addresses. Multiple IP addresses can be listed (separated by semicolon). The “any IP addresses” option is intended for private networks not accessible via Internet or PSTN.

List of IP addresses (separated by semicolon) of endpoints from which the MVP-SS will accept registrations.

The time after which the UserAgent Client is supposed to register with the proxy server. Expiration of the registration means that the gateway has lost contact with the main SIP server and that the MVP-SS unit will enter ‘survivability’ mode. In survivability mode, the MVP-SS unit will complete calls acting as a backup to the main SIP server. Normally, the MVP-SS will initiate re-registration before the interval lapses.

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