Grandstream Networks GXW400x User Manual page 27

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 Interval Maximum retransmission interval for non-INVITE requests and INVITE responses.
DTMF Payload Sets the payload type for DTMF using RFC2833.
Type
DTMF in-audio Send DTMF as inband (in-audio).
DTMF via RFC2833 Send DTMF via RTP (According to RFC 2833).
DTMF via SIP INFO Send DTMF via SIP INFO message.
Send Hook Flash Default is NO. If set to yes, flash will be sent as DTMF event.
Event
Enable Call Default is Yes. (If Yes, call features using star codes will be supported locally)
Features
Off-Hook Auto Dial Allows the user to configure a User ID or extension number to be automatically dialed upon
off-hook. Only the user part of a SIP address needs to be entered here. The phone will
automatically append the "@" and the host portion of the corresponding SIP address.
Proxy Require SIP Extension to notify SIP server that the unit is behind the NAT/Firewall.
Use NAT IP NAT IP address used in SIP/SDP message. Default is blank.
Distinctive Custom Ring Tone 1 to 3 with associate Caller ID: when selected, if Caller ID is configured,
Ringtone then the device will ONLY uses this ring tone when the incoming call is from the Caller ID.
System Ring Tone is used for all other calls. When selected but no Caller ID is configured,
the selected ring tone will be used for all incoming calls.
Disable Call Default is No.
Waiting
Disable Call Default is No. This is to disable the stutter Call Waiting Tone when a Call Waiting call arrives.
Waiting Tone The CWCID will still be displayed.
Disable Visual MWI Visual message indicator is a special on-hook caller ID type message that enables and
disables the message waiting light on certain phones. GXW400x has this feature enabled by
default. However, certain phones (rare) that do not support it may mistakenly treat this CID
signal as an incoming call. A configuration option is needed to turn on MWI in this case.
Ring Timeout
Incoming call will stop ringing when not picked up given a specific period of time.
Hunting Group Default is 20 seconds. If call is not answered within this designated time period, the call will
Ring Timeout be forwarded to the next member of a Hunt Group.
Delayed Call Default is 20 seconds.
Forward Wait
Timeout
No Key Entry Default is 4 seconds. Call will be completed within this time interval if no additional key entry
Timeout occurs.
Grandstream Networks, Inc. GXW400x User Manual
Firmware 1.0.0.67
Page 27 of 35
Last Updated: 10/2007