TAG: trunk Asterisk 'sip.zadarma.com' PJSIP trunk Asterisk round-robin memory trunk group Avaya SIP Asterisk FreePBX FreePBX SIP Trunk LG IPECS LIK 50 SIP транк Asterisk LG ipLDK SIP транк Asterisk PjSIP транк без регистрации Samsung OfficeServ SIP trunk + Asterisk Trunks