User guide

FAX BOARDS AND FAX DRIVERS INSTALLATION

Key Name Description

multicast gatekeeper discovery routine to find an available gatekeeper.

0 Does not support alternate gatekeepers.

1 Supports alternate gatekeepers when necessary.

Value type: integer

Default value: 0

Table 2. Basic Predefined SIP IP Call Control Stack Parameters

Key Name Description

sip_Contact

Indicates the value provided in the SIP header for the Contact parameter. The

Contactparameter contains a SIP uniform resource identifier (URI) or SIPS (secure SIP)

URI that defines the address of the sender.

When this parameter is set to the default value (empty string), the SIP stack automatically

attempts to find the IP address of the local host for its use by resolving the host name. You

must make sure that the IP address of the local host is suitable for SIP use.

Linux systems - If the SIP stack cannot resolve the name of the local host to a suitable IP

address, the SIP stack does not function.

Range: 1 - 255 characters

Value Type: character string (up to 256 characters)

Default value: <blank>(empty string indicating that the system uses the IP address of the

local host)

sip_default_gateway

Indicates the IP address of a default gateway to use for outbound calls. If a user only

specifies a phone number when making a SIP call and the application is not using a SIP

proxy server, the API forwards the call to the gateway specified with this parameter. The

API forwards the specified phone number to the gateway for routing purposes.

When set, this parameter must contain an IP address in the form:

xxx.xxx.xxx.xxx:PortNumber (port number is optional)

Examples:

10.128.22.6:5060 (port number specified)

10.128.22.6 (no port number specified)

Note: For the SIP protocol, the port defaults to 5060 if not specified.

Range: 1 - 255 characters

Value Type: character string (up to 256 characters)

Default value: <blank>(empty string indicating no default gateway defined)

Note: The API does not use this parameter if the configuration file specifies a

sip_registration_server or sip_proxy_server(see sip_proxy_server1 parameter below).

sip_description_URL

Indicates the value used for the u=line in the SIP SDP. The u=line identifies the SIP

uniform resource identifier (URI) of the session description.

Range: 1 - 255 characters