andrewgroup Posted January 8, 2010 Report Share Posted January 8, 2010 How many installation has the PBXnSIP community deployed where every user can unplug their office VoIP phone, carry it home and barring NAT firewall problems plug it in and Voila' ? Our Goal is to figure our how every installation past, present and future will work this way. To accomplish this the phones must be PNP, The Phones should register using SRV records On first glance, a common installation will likely have a Windows Server supporting DHCP... option 66 for configs is the obvious... but, the PBX might be on an internal lan, say 192.168.1.99, The pbx registration should pull the PBX registration and do a DNS SRV lookup, but it seems the Windows DNS server internally will need a SRV record to 192.168.1.99 sip_udp so that local phones stay on the local LAN. Carry the phone home, I assume the settings would retain the DNS look up info... Of course the real world DNS's would have a public IP srv records.. (The real world is the internal windows dns servers are not likely authoritative on the domain) I assume a firewall would port forward / ALG the sip stuff to the PBX, or the PBX would have a public IP also... I think this brings up a lot of misc. issues, and I would like to know if we've made this overly complicated, or have others wrestled with these issues? Quote Link to comment Share on other sites More sharing options...
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