HandyTone | Grandstream Networks, Inc. | |
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NAT Traversal
Use NAT IP
SUBSCRIBE for
MWI
Offhook
Enable Call Feature
Disable Call
Waiting
Send DTMF
DTMF Payload Type
Send Flash Event
FXS Impedance
This parameter defines whether the phone NAT traversal mechanism will be activated or not. If activated (by choosing “Yes”) and a STUN server is also specified, then the phone will behave according to the STUN client specification. Under this mode, the embedded STUN client inside the phone will attempt to detect if and what type of firewall/NAT it is behind by sending appropriate request to the specified STUN server.
If this field is set to “Yes” with no specified STUN server, then the phone will only periodically (every 20 seconds by default) send a blank UDP packet (with no payload data) to the SIP server to keep the mapped port open on the NAT.
The
NAT IP address is used in SIP/SDP message. Default is blank.
SIP Extension to notify SIP server that the unit is behind the NAT/Firewall.
Default is “No”. When set to “Yes” a SUBSCRIBE for Message Waiting Indication will be sent periodically
This parameter allows the user to configure a User ID or extension number to be automatically dialed upon offhook. Please note that 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.
Default is YES. If set to “Yes”, call features are supported locally, such as call- waiting, transfer,
Default is No.
This parameter specifies the mechanism to transmit DTMF digit. There are 3 modes supported: in audio which means DTMF is combined in audio signal (not very reliable with
This parameter sets the payload type for DTMF using RFC2833
Default is NO. If set to yes, flash will be sent as DTMF event.
Selects the impedance of the analog telephone connected to the Phone port.
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