I have a DrayTek Vigor3300V gateway with 8 FXO ports. I am trying to configure asterisk to dial out on the gateway. I have one of the FXO ports configured on sip account 100. If I dial the sip account then the router gives me dial tone, with which I can dial a number. Unfortunately this is not the behaviour I desire. I want to setup the FXO port as a trunk with out it giving me a dial tone. I have tried the Dial(sip/100, D(${NUMBER})) command, but it doesn’t work. Any ideas please.