20:39:51 <Serge> Hi all
20:41:00 <Serge> when you setup grandstream phone, do I need to enable option "Use SBC"?
21:08:19 <mc_> Serge: no idea for grandstream, but i suspect that would be if the SIP realm you have doesn't resolve to an IP
21:08:27 <mc_> or to force the phone to talk to a specific SBC
22:18:42 <Serge> mc_: well there is only "Yes/No"
22:19:48 <Serge> somehow at one location phones loosing registration
22:20:02 <Serge> 5 phones
22:20:21 <Serge> and it is work just fine in another location