Configuring The Pstn Interface; Working With A Sip Proxy; Basic Proxy Provisioning; Proxy Hot Swap - Avaya G860 Installing And Operating

Avaya G860 Media Gateway
12.11

Configuring the PSTN Interface

The PSTN is listed as rows in the Board Status screen of the EMS (accessed by
double-clicking on a TPM board in the MG Status screen).
information in the following columns: Interface (the name of the interface), Interface
type (STM-1 or OC-3 [future]), Link 1 Status, Link 1 Alarms, Link 2 Status, Link 2
Alarms.
Link 1 Status and Link 1 Alarms in this screen refer to the status of one of the interface
in the interface pair and Link 2 Status and Link 2 Alarms refer to the second interface
of the pair. The Status columns indicate which link is the Active one and which is the
Standby one. The Alarms columns display any alarm that may be triggered on that
link.
To view the status of a PSTN, select a row and double-click on it. The Fiber Group
Status screen appears. It graphically depicts the interfaces links as Link A and Link B
(corresponding Link 1 and Link 2 in the previous screen).
Active/Standby status is indicated at the top of each of the Links. and the status is
color coded. Active is dark and Standby is light blue.
To display the properties of the Link pairs, select either link and click the Properties
link to the left.
12.12

Working with a SIP Proxy

A SIP proxy server receives a SIP request from a user agent or another proxy and
acts on behalf of the user agent in forwarding or responding to the request. A proxy
server typically has access to a database or a location service to aid it in processing
the request (determining the next hop). A proxy can use any number of types of
databases to aid in processing a request. Databases could contain SIP registrations,
presence information, or any other type of information about where a user is located.
A SIP proxy operates in a similar way to a proxy in HTTP and other Internet protocols.
A SIP proxy does not set up or terminate sessions, but sits in the middle of a SIP
message exchange, receiving messages and forwarding them. There can be multiple
proxies in a signaling path.
Avaya G860 Media Gateway uses proxy servers to help route requests to the user's
current location, authenticate and authorize users for services, implement provider
call-routing policies and provide features to users.
12.12.1

Basic Proxy Provisioning

The following should be configured for basic Proxy operation:
Enable Proxy for using Proxy services instead of using gateway routing tables
Proxy IP address
Proxy Name – is the Home Proxy Domain Name. If specified, the name is used as
Request-URI in REGISTER, INVITE and other SIP messages.
If the proxy name isn't specified, the Proxy IP address is used instead.
12.12.2

Proxy Hot Swap

The Avaya G860 Media Gateway provides real time switching between the primary
and redundant proxies (Proxy Hot Swap). If the first Proxy does not respond to an
120 Installation & Operation Manual
Each row displays