How to make the call not interrupted along the chain?

Question

Asterisk

We make simultaneous dialing to subscribers..
exten => s,n,Dial(SIP/1&SIP/2&SIP/3&SIP/4)
Everything works, but in case... if for example SIP/1 is not available, the call does not go further..
Is it possible to make the call go further?

Answer 1

In fact, with this indication of numbers, Dial will call all subscribers at once. The only thing that can interfere is the forwarding installed on one of the called phones. If the phone is just busy or disabled, then the rest should still call.