Re: [asterisk-users] Is 100 trying mandatory? Can asterisk answer with 180 without prior 100 trying?

On Mon, Mar 19, 2018, at 12:53 PM, Benoit Panizzon wrote: > Hey List > > I sometimes use our asterisk server to do some debugging or other PBX > and SBC. > > Now we have a case where a PBX is replying an incomming invite with 180 > ringing immediately. It looks like the SBC does not accept this.

Re: [asterisk-users] Is 100 trying mandatory? Can asterisk answer with 180 without prior 100 trying?

On Mon, Mar 19, 2018 at 12:59:47PM -0300, Joshua Colp wrote: > > To try to reproduce the problem with our SBC, is there a way to tell > > the asterisk, preferably PJSIP, to directly answer with 180 ringing > > without prior 100 trying? > > The PJSIP channel driver has no option or ability to do th

Re: [asterisk-users] Is 100 trying mandatory? Can asterisk answer with 180 without prior 100 trying?

Hi Tryba > A (very) dirty workaround would be to drop these packets with iptables > (assuming Linux as OS), something like: > > iptables -t raw -I OUTPUT -p udp -d ipaddrofpbx -m string --algo bm > --from 0 --to 32 --string "SIP/2.0 100 " -j DROP > > Don't try it with TCP :) :-) Indeed, this i