Grandstream Networks GXW400X - DTMF and Flash Event Settings; DTMF Method Configuration; Hook Flash Event Settings

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GXW400X User Manual
Preferred DTMF
method (in listed
order)
The GXW400X supports up to 3 different DTMF methods including in-audio, via
RTP (RFC2833) and via Sip Info. The user can configure DTMF method in a
priority list.
DTMF-RELAY Tag
Respect SIP INFO
Default is No. If set to No, the DTMF-relay tag in Accept Header is always
added in outbound INVITE. If set to Yes, it depends on if SIP INFO is chosen in
Preferred DTMF Method.
Disable DTMF
Negotiation
Default is No. If set to yes, use above DTMF order without negotiation
Send Hook Flash
Event
Default is No. If set to yes, flash will be sent as a DTMF event.
Enable Call
Features
Default is Yes. (If Yes, call features using star codes will be supported locally)
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.
Use SIP User-Agent
Header
Used to replace SIP User-Agent Header (No Default)