[Example]
PBX
Router
Site
IP-PT KX-UT
Series
Internet
SIP server
SIP
SIP Signal
Voice Packet
P2P connection between an IP extension and IP trunk within a site
Voice packets are transmitted and received between the IP extension and the IP trunk within a site.
P2P connection between branch offices over a VPN (hub
-and-spoke connection)
*1
Remote Office 1
Remote Office 2
Router
Site
PBX
Router
Hub router
P2P
Calls between IP telephones in separate branch offices establish a P2P connection, using the hub router at
Site to communicate over a VPN.
*1
When the VPN uses a hub-and
-spoke (star) topology, the hub router must be configured to allow U-turn connections.
498 Feature Guide
5.2.3 Peer-to-Peer (P2P) Connection
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