15 minutes account number asterisk billing block busy signal byod call drop callerid call forwarding call history cisco cisco ata cnam lidb cid name congestion connected devices vpanel control panel customer service dial plan disconnected dns srv elastix fast busy signal fax fee firewall ports google voice grandstream ice cream sandwich inbound route incoming call incoming calls international international calling live chat mobile mobile app newbie no ring no service not registered outging fax outgoing pbx pbx beta pbx beta pickup parking pbx equipment polycom ip 550 reports road runner second line settings setup sip sms softphone softphone byod softphone grounwire ipad software sound lost to callee spam speed sucks toll free transfer virtual numbers voice quality voipo vpanel wan