User guide

FAX BOARDS AND FAX DRIVERS INSTALLATION
86
Key Name Description
Do not use the DHCP value. It is reserved for future use.
sip_registration_server1
sip_registration_server2
sip_registration_server3
sip_registration_server4
Indicates the address of the specified SIP registration server. The user can define a
maximum of 4 registration servers.
DHCP Causes the system to use the SIP DNS server locator capability to discover the
domain name of the SIP registration server.
Domain name Indicates the name or IP address of the registration server (up to 256
characters).
Range: 1 - 4 registration servers specifying any valid domain name (for example,
www.my_registration_server.comor 192.168.1.45)
Value Type: character string (up to 256 characters)
Default value: <blank>(empty string indicating no registration server defined)
Note
Do not use the DHCP value. It is reserved for future use.
sip_session_description
Indicates the value used for the i=line in the SIP SDP. The i=line provides a textual string
that describes the session's purpose or provides information about the session.
Range: 1-255 characters
Value Type: character string (up to 256 characters)
Default value: <blank>(empty string)
sip_session_name
Indicates the value used for the s=line in the SIP SDP. The s= line provides a textual string
that gives a name to the session.
Range: 1-255 characters
Value Type: character string (up to 256 characters)
Default value: no_session_name
sip_username
Indicates the name inserted into the o=line in the SIP session description protocol (SDP).
The o=line defines the owner or creator of the session and the session identifier. This value
must not contain spaces.
- (dash) A dash or hyphen character indicates the absence of an owner name or session
ID.
Range: 1-255 characters
Value Type: character string (up to 256 characters)
Default value: -(dash or hyphen character)
Table 3. Advanced SIP IP Call Control Stack Parameters
Key Name Description
sip_Max-Forwards
Indicates the value provided in the SIP header for the Max-Forwards parameter. The
value in the Max-Forwardsparameter serves to prevent loops by limiting the number of
hops a SIP request can make on the way to its destination. The value consists of an
integer that the system decrements by one at each hop. When this value reaches 0, the