IPX-100 system installation & configuration
Page-42
TELECOMMUNICATIONS
3-4
Timing
3-4-1
Outbound SIP Registration Timing
At this page to set the relevant time parameter for the PBX program to send the SIP external
registration packet as below
：
Maximum allowed time of incoming registrations
Maximum allowable time for remote
registration of this unit (default is 3600
seconds).
Minimum allowed time of incoming registrations
The minimum allowable time for remote
registration of this machine (default is 60
seconds) to avoid too frequent registration
and overload the system.
Default length of incoming/outgoing registration
Preset registration time interval for remote
registration of the local machine, local
registration of the remote host, preset to 120
seconds.
3-4-2
Outbound SIP Registration Options
At this page to analyze the basic operational parameters of the SIP call request packet when the
PBX core resolves it
：
Retry registration Timer
The retry registration time of the local registered external
host (default is 20 seconds).
Registration Attempts Before Give Up
Give up the number of re-attempts to register, set to 0 to
always try to register until the registration is successful.
(default is 0).
3-4-3
SIP Timing
At this page to set the basic time parameter for the PBX core to resolve SIP calls as below
：
Minimum Roundtrip Time
The minimum round-trip time for the message to the monitored host
device, preset to 100 milliseconds (ms).
Default T1 timer
The default T1 timer, the default is 500 milliseconds or the measured
round trip time when the qualification is set to YES.
Call setup timer
The call setup time, if no temporary response is received during this
time, it will be determined that the call is in a congested state. The
default value is 64 times that of the T1 timer.
