PLANET VGW-400FO - Manual (Page 47)

4-Port SIP Internet Telephony Gateway
VGW-400 Series
TFTP, and makes two-way encryption and decryption driven by
user-customized policy. VGCP is fully transparent to upper SIP
proxy or UA which means Voice Guard@ can work with any 3rd
party soft phone / ATA / Gateway / IP Phone / IADs and SIP
Proxy or Server not like some competitors which take effect on
their own device and soft switch.
6.2 Audio
The setting page includes the device related to audio settings.
Item Explanation
RFC 2833 Payload Type 96 or 101. It is recommended to use 101.
DTMF Send On
Time(msec)
When generating DTMF, the DTMF ON time will be sent
(default value is 70 ms)
DTMF Send Off
Time(msec)
When generating DTMF, the DTMF OFF time will be sent
(default value is 70 ms)
DTMF Detect Min on
Time (msec)
The minimum DTMF ON time period will be processed as a
regular DTMF event. A smaller ON time less than this will be
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