User's Manual

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GXW42xx User Manual
Version 1.0.5.43
account, will be able to place outbound calls using the SIP credentials
of the primary Hunting Group port. Default is No.
For example: Port 1, 3 and 5 are members of the same Hunting Group.
Port 1 is registered with a SIP account. Ports 3 and 5 are not registered.
Ports 3 and 5 will be able to place outbound calls using the SIP account
of port 1, even if Outgoing Call without Registration is set to No.
Register Expiration
Allows the user to specify the time frequency (in minutes) for the
GXW42XX to refresh its registration with the specified registrar. The
default interval is 60 minutes (or 1 hour). The maximum interval is
65535 minutes (about 45 days).
SIP Registration Failure Retry
Wait Time
Allows the user to specify the time frequency (in seconds) for the
GXW42XX to re-register after registration failure. The default interval is
20 seconds. The maximum interval is 3600seconds (1 hour).
SIP Registration Failure Retry
Wait Time upon 403 Forbidden
Default is 1200 sec. Specifies the interval to retry registration if the
process is failed due to 403 Forbidden. Valid range is 0 to 3600 in
second. 0 second means stop retry registration.
Reregister Before Expiration
Determines how many seconds before the previous registration expires
that the port should reregister.
Local SIP Port
Defines the local SIP port the GXW42XX will listen and transmit. The
default value for Profile 1 is 5060 and 6060 for Profile 2.
Use Random SIP Port
Default is No. If set to Yes, the device will pick randomly-generated SIP
ports. This is usually necessary when multiple GXW42XX /HT50X are
behind the same NAT.
Local RTP port
Defines the local RTP port used to listen and transmit RTP packets. The
default value is 50000 for Profile 1, 51000 for Profile 2, 52000 for Profile
3 and 53000 for Profile 4.
SIP T1 Timeout
T1 is an estimate of the round-trip time between the client and server
transactions.
If the network latency is high, select larger value for more reliable usage.
SIP T2 Timeout
Maximum retransmission interval for non-INVITE requests and INVITE
responses.