I am trying to set up 3 SIP IP550 phones to my Asterisk box .I have configured 2 lines in each phone.
All the phones can talk to one another .But the only thing I am having trouble with is when someone dials say 4 all the phones should ring on line 2.
I am able to ring all the phones on line 1 by adding a line on extensions.conf like this
exten => 4,1,Dial(SIP/John&SIP/Steve&SIP/Bob)
Is there a way to dial the ops line on line2 in all the 3 phones?Please help me out.