Grandstream Networks DP752 Administration Manual page 50

Outgoing Calls Enables the ability to place outgoing calls even when not registered (if allowed by
Without ITSP); device will not be able to receive incoming calls. Any HS member of a
Registration hunting group that is not registered with a SIP account, will be able to place
outbound calls using the SIP credentials of the primary hunting group HS.
For example: HS 1, 3 and 5 are members of the same Hunting Group. HS 1 is
registered with a SIP account. HS 3 and 5 are not registered. HS 3 and 5 will be
able to place outbound calls using the SIP account of HS 1, even if Outgoing Call
without Registration is set to No. Default is Yes.
Register Expiration Refreshes registration periodically with specified SIP proxy (in minutes). Maximum
interval is 65535 minutes (about 45 days). Default is 60 minutes (or 1 hour).
SIP Registration Sends re-register request after specific time (in seconds) when registration process
Failure Retry Wait fails. Maximum interval is 3600 seconds (1 hour). Default is 20 seconds.
Time
SIP Registration Sends re-register request after specific time (in seconds) when registration process
Failure Retry Wait fails due to "403 Forbidden". Valid range is 0 to 3600 in second. 0 second means
Time upon 403 stop retry registration. Default is 1200 seconds.
Forbidden
Reregister Before Sends re-register request after specific time (in seconds) to renew registration
Expiration before the previous registration session expires.
Local SIP Port Defines local port to use by the base for listening and transmitting SIP packets.
Default value for Profile 1 is 5060, 6060 for Profile 2, 7060 for Profile 3 and 8060
for Profile 4.
Use Random SIP Controls whether to use configured or random SIP ports. This is usually necessary
Port when multiple base stations are behind the same NAT. Default is No.
Local RTP Port Defines local RTP port used to listen and transmit RTP packets. Default is 5004.
Use Random RTP Defines local port to use by the base for listening and transmitting RTP packets.
Port Default value for Profile 1 is 5004, 6004 for Profile 2, 7004 for Profile 3 and 8004
for Profile 4.
SIP T1 Timeout Defines T1 timeout value. It is an estimate of the round-trip time between the client
and server transactions. For example, the base station will attempt to send a
request to a SIP server. The time it takes between sending out the request to the
point of getting a response is the SIP T1 timer. If no response is received the timeout
is increased to (2*T1) and then (4*T1). Request re-transmit retries would continue
until a maximum amount of time defined by T2. Default is 0.5 seconds.
DP752/DP730/DP722 Administration Guide
Version 1.0.11.4
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