INGATE LAN ingate.com Internet US, Miami THIS LAN, SIP Trunk-UC Summit CELL PSTN INTERTEX LAN intertex.se Sweden 3G PSTN SIP/PSTN Gateway SIP Trunk Provider 1 PSTN SIP/PSTN Gateway SIP Trunk Provider 2 Japan
We Saw Mobility and Beyond POTS Ordinary phone calls reach my laptop across the Ocean! I can use extension number as connected to the home PBX And I see presence and can put calls into conference… I can also: Call Sophie in another domain (federate) … even with Video … even though, she is also remote from the Ingate office (Actually she is in the room.) … with media going the shortest way (here on the LAN) while signaling goes back to Sweden!
11 Different Types of PBXs are SIP Trunked Data LAN only PBX with system system phones phones PBX Type 1.5 VoIP & Data LAN PBX Type 2 IP- PBX PBX Few PBXs are of this type. Asterisk with firewall (IPtables /NETfilter) can be compiled and configured this way, but requires a lot. A Good E-SBC Should Provide: 1)NAT/Firewall Traversal – Must NAT to same address space! 2)Basic SIP and Network Interoperability - E.g. Authentication, Registrations, UDP/TLS/TCP, Dynamic IP address, etc. 3)SIP Repair - E.g. Call Transfer, Fragmented packets, Bugs, etc. 4)Features - E.g. Remote Users, Administration (remote and local) 5)Security - LAN/PBX/VoIP network protection, Service attack protection VoIP & Data LAN IP- PBX PBX PBX Type 1 Modern IP-PBXs are of this type. Media goes directly between phone and SIP Trunk. SIP Trunk Interface Signaling: Media: SIP Trunk PSTN SIP Trunking Provider Network GW SIP System 2) 3) 4) 5) IX781) 2) 3) 4) 5) But they may not have SIP Phones...