User`s guide

Dialogic
®
1000 and 2000 Media Gateway Series User’s Guide 61
Parameter Reference
3.3.1.4 Invite Expiration
Description: Specifies the amount of time in seconds that an INVITE request sent by the Media
Gateway is valid and can be accepted by the SIP endpoint. After the defined time in seconds, the
INVITE request expires and is no longer valid.
Allowed Values: 1 - 60000 seconds
Default Value = 60000 seconds
INI File Parameter Name = sipExpInvSec
3.3.1.5 Reliable Provisional Responses
Description: Specifies whether the reliability of provisional responses (PRACK) is disabled,
supported, or required by the UAC. This is signaled with 100rel in the “Supported” and “Required”
SIP headers.
Allowed Values:
• None = Reliable Provisional Response support is disabled.
• Supported = Reliable Provisional Response is supported. The INVITE messages generated by
the gateway will contain 100rel in the Supported header sent to the VoIP endpoint.
• Required = Reliable Provisional Response is required. The INVITE messages generated by the
gateway will contain 100rel in the Required header sent to the VoIP endpoint.
Default Value = Supported
INI File Parameter Name = sipRelProvRsp
3.3.2 Server Group
The Server subgroup includes the following parameters:
• DNS Server Address
• DNS Server Address 2
• DNS Translation of Phone Numbers
3.3.2.1 DNS Server Address
Description: Specifies the IP address of the Domain Name Server (DNS) that the Media Gateway
will use to resolve IP address information.