2274 CHAPTER 132: VOICE ENTITY CONFIGURATIONConfiguring DTMFTransmission in FastConnection ModeFollow these steps to configure a DTMF transmission in the fast connection mode:n In actual configuration, to implement the transparent transmission of DTMF digit,you need to perform configurations for the VoIP entity on the originating GW andthe POTS entity on the terminating GW. The out-of-band transmission mode ofthe POTS entity may differ from that of the VoIP entity.ConfiguringOut-of-Band DTMFTransmission withTunneling EnabledIn fast connection mode, DTMF digit is transmitted in H.245 UserInput messagesthrough the tunneling function, and the transparent transmission of DTMF digitcannot be completed if either the originating side or terminating side does notsupport the tunneling function.Follow these steps to configure the out-of-band DTMF transmission with tunnelingenabled in the fast connection mode:Configuring VAD Follow these steps to configure VAD:Enable tunneling on theterminating GWvoip called-tunnel enable OptionalEnabled by default.To do... Use the command... RemarksTo do... Use the command... RemarksEnter system view system-view -Enter voice view voice-setup -Enter voice dial program view dial-program -Enter VoIP entity view entity entity-number voip -Enable fast connection fast-connect RequiredDisabled by default.Configure the out-of-bandDTMF transmissionoutband h225 OptionalInband DTMF transmission bydefault.To do... Use the command... RemarksEnter system view system-view -Enter voice view voice-setup -Enter voice dial programviewdial-program -Enter VoIP entity view entity entity-number voip -Enable fast connection fast-connect RequiredDisabled by defaultEnable the tunneling tunnel-on Required.Disabled by default.This command is applicable onlyafter the fast connection isenabled.Configure the out-of-bandDTMF transmissionoutband { h225 | h245 } OptionalInband transmission by default.
