User`s manual

MediaPack

SIP User's Manual 22 Document #: LTRT-65408

1.3.3 MP-124 Hardware Features

 MP-124 19-inch, 1U rugged enclosure provides up to 24 analog FXS ports, using a

single 50 pin Telco connector.

 LEDs on the front and rear panels that provide information on the operating status of

the media gateway and the network interface.

 Reset button on the front panel that restarts the MP-124 gateway, and is also used to

restore the MP-124 parameters to their factory default values.

1.3.4 SIP Features

The MediaPack SIP gateway complies with the IETF RFC 3261 standard.

 Reliable User Datagram Protocol (UDP) transport, with retransmissions.

 Transmission Control Protocol (TCP) Transport layer.

 SIPS using TLS.

 T.38 real time Fax (using SIP).

Note: If the remote side includes the fax maximum rate parameter in the SDP body of

the INVITE message, the gateway returns the same rate in the response SDP.

 Works with Proxy or without Proxy, using an internal routing table.

 Fallback to internal routing table if Proxy is not responding.

 Supports up to four Proxy servers. If the primary Proxy fails, the gateway automatically

switches to a redundant Proxy.

 Supports domain name resolving using DNS NAPTR and SRV records for Proxy,

Registrar and domain names that appear in the Contact and Record-Route headers.

 Supports Load Balancing over Proxy servers using Round Robin or Random Weights.

 Proxy or Registrar Registration, such as:

VIA: SIP/2.0/UDP 212.179.22.229;branch=z9hG4bRaC7AU234

From: <sip:GWRegistrationName@sipgatewayname>;tag=1c29347

To: <sip:GWRegistrationName@sipgatewayname>

Call-ID: 10453@212.179.22.229

Seq: 1 REGISTER

Expires: 3600

Contact: sip:GWRegistrationName@212.179.22.229

Content-Length: 0

• The "servername" string is defined according to the following rules:

• The "servername" is equal to "RegistrarName" if configured. The

"RegistrarName" can be any string.

• Otherwise, the "servername" is equal to "RegistrarIP" (either FQDN or numerical

IP address), if configured.

• Otherwise the "servername" is equal to "ProxyName" if configured. The

"ProxyName" can be any string.

• Otherwise the "servername" is equal to "ProxyIP" (either FQDN or numerical IP

address).

The parameter GWRegistrationName can be any string. If the parameter is not

defined, the parameter UserName is used instead.

The 'sipgatewayname' parameter (defined in the ini file or set from the Web browser),

can be any string. Some Proxy servers require that the 'sipgatewayname' (in

Registrar / Proxy domain name.