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IP Telephony and QSIG Over IP
Pre-installation Guidelines
Strata CTX I&M 06/04 9-13
IP Telephony and QSIG
Over IP
Step 4: Connect IPTs to Network
The following diagrams are examples of IP connections to either a hub, LAN or VPN network.
IPT Connections
Figure 9-8 shows how the IP components should be connected. Refer to the Strata CTX
Programming manual for IPT programming procedures.
Figure 9-8 IP-CTX Connections Example
IPT Anywhere
IPT Anywhere enables you to connect IP telephones remotely throughout the Internet and use all
Strata CTX telephone features (except Speaker OCA). IPT remote connections can be set with or
without the use of Virtual Private Network (VPN). VPN connections provide increased security
and is recommended for permanent type IPT remote connections. When moving IPT telephones
frequently to different locations (hotels, conferences, etc.) non-VPN connections are more
practical.
When using home type xDSL or cable connections, only one or two IPTs may be connected
because of xDSL and cable bandwidth limitations. High speed T1, fiber, or ATM-type connections
are required when installing more than two IPTs at a remote site.
An Internet configuration could use the following connections:
• No VPN, and thus, no security (BIPU-M2A)
• Third party Virtual Private Network (VPN) software residing on DHCP gateway server. To
connect IPTs over the Internet, using third party or Microsoft VPN software residing on a
DHCP gateway server (see Figure 9-9.)
• ATM (IP over ATM virtualization by VC/VP)
• Broadband Ethernet virtualization by Virtual LAN (VLAN)
• IP-VPN (IP-VPN based on Multi-protocol Label Switching (MPLS)
• Private line connection
6788
IPT1
DN3001
IP address of IPT1
192.168.1.241
IP address of IPT2
192.168.1.242
to 120VAC
to
120VAC
IPT2
DN3002
RJ45
Ethernet
Port
LAN RJ45
Jack
LAN RJ45
Jack
Strata CTX
Example IP address
of BIPU
192.168.1.230
BIPU
Switch or LAN
(DHCP server)
with or
without VPN
Cable/
DSL Modem
VPN
Router
(VPN is optional
with BIPU-M2A)
LAN
Virtual Private
Network (VPN)