Grandstream Networks HandyTone-486 User Manual page 27

HandyTone-486 User Manual
NAT Traversal
Keep-alive interval
Use NAT IP:
Proxy-Require
Subscribe for MWI: Default is "No". When set to "Yes" a SUBSCRIBE for Message Waiting
Offhook
Auto-Dial
Enable Call
Features
Disable Call
Waiting
Send DTMF
DTMF Payload
Type
Send Flash Event
Onhook Threshold
FXS Impedance
Caller ID Scheme
Onhook Voltage
This setting decides whether the NAT traversal mechanism is activated. It
should be set to "Yes" if the device is behind a NAT router. If no outbound
proxy is configured, a STUN server needs to be set to activate STUN detection
mechanism. Usually ITSP will provide these settings.
If this field is set to "Yes", then the device will periodically (every Keep-alive
interval) send a dummy UDP packet to the SIP server to pinhole the NAT.
Default is 20 seconds. This is the interval of sending dummy UDP packet to
keep the NAT "pin hole" open.
If configured, the NAT IP address will be used in SIP/SDP message. Default is
blank.
SIP Extension to notify SIP server that the unit is behind the NAT/Firewall.
Indication will be sent periodically.
This parameter allows a 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 HandyTone ATA will automatically
append the "@" and the host portion of the corresponding SIP address.
Note: Please write down the IP address of the ATA if you use this feature as it
will prevent you to access the IVR and the only way to access the device
configuration is via the web configuration page.
Default is "Yes". Advanced call features and feature codes functions are
supported locally.
Default is "No". User can use star codes to enable/disable call waiting.
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 low-bit-rate codec), via RTP (RFC2833), or via SIP
INFO.
This parameter sets the payload type for DTMF using RFC2833
Default is "No". If set to "Yes", flash will be sent as a DTMF event.
The amount of time the hookflash is pressed that will cause the device to
onhook. Default is 800ms.
Selects the impedance of the analog telephone connected to the Phone port.
Select the Caller ID Scheme to suit the standard of different area.
Select the onhook voltage to suit different area or PBX.
27
Grandstream Networks, Inc.