Cirkuit Planet VIP-154NT ユーザーズマニュアル

This page defines the DTMF parameters. Yyou can setup the InBand DTMF, 2833 Out-Band DTMF and 

Send DTMF SIP Info Enable/Disable in this page. To change this setting, please following your ISP 

information. When you finished the setting, please click the Submit button. 

 

 

 

 

This page defines the RPort Enable/Disable in this page. To change this setting, please following your 

ISP information. When you finished the setting, please click the Submit button. 

 

 

 

 

This page defines the Hold by RFC, Voice/SIP QoS and other settings in this page. To change these 

settings please following your ISP information. When you finished the setting, please click the Submit 

button.  

Hold by RFC: The default is disable, and to start up communication hold back function (RFC definition). 

Set enable to start up the Hold by RFC function. 

Voice QoS (Diff-Serv): The Voice QoS feature. 

SIP QoS (Diff-Serv): The SIP QoS feature. 

 

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The QoS setting is to set the voice packets’ priority. If you set the value higher than 0, then the voice 

packets will get the higher priority to the Internet. But the QoS function still need to cooperate with the