User's Manual

4-/8-/16-/24-/32-Port SIP Internet Telephony Gateway
32
Explanation of SIP parameters:
Primary SIP Server Address
The IP address or domain name of the primary SIP server is provided by
VoIP service provider.
Primary SIP Server port The Service port of the primary SIP server is 5060 by default.
Registration Expires
It is used to avoid excessively frequent registrations.
When the time that is set expires, terminals will send register request to
the primary SIP server. The time is 1800s by default.
Heartbeat
Heartbeat is used to check the connection between terminal and SIP
server.
Secondary SIP Server address
The IP address or domain name of the backup SIP server is provided by
VoIP service provider.
Secondary SIP Server port Service port of the backup SIP server is 5060 by default.
Registration Expires
It is used to avoid excessively frequent registrations.
When the time that is set expires, terminals will send register request to
the backup SIP server. The time is 1800s by default.
Secondary SIP heartbeat
Heartbeat is used to check the connection between terminal and SIP
server.
Outbound Proxy Address
Outbound proxy IP address or domain name is provided by VoIP service
provider.
Outbound Proxy Port Default outbound proxy port is 5060.
Retry Interval when Registration failed The retry interval time after a registration fails is 30s by default.
Registration Times per Second
The maximum number of registrations in a second. 0 means no limitation
for registrations.
SIP Transport Type SIP-based transmission includes UDP, TCP ir Auto. Default: UDP.
Use Random Port The SIP port for providing services for terminal is chosen at random.
SIP Local Port Default SIP local service port is 5060.