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Features
Private Networking Over Internet Protocol
Private Networking Over Internet Protocol
System Availability: Strata CTX100, CTX670
Strata Net CTX multi-system networking can be implemented over an IP network using Strata
CTX systems with BIPU-Q1A IP interface circuit cards. The BIPU-Q1A requires CTX Release
2.1 software. This feature offers the same connection service as ISDN dedicated lines with QSIG
protocol on the public network. QSIG over IP, does not support modemized data signals, such as
modem signal and G3 fax because these signals require very low jitter and low delay on the
networks.
The BIPU-Q1A can be configured for up to 16 channels in system programming. The BIPU-Q1A
supports the same functions of call control as the dedicated ISDN QSIG interface and the two
interface types can be mixed in on a Strata Net network. However, the BIPU-Q1A only interfaces
with the BIPU-Q1A, not with the BPTU or RPTU interfaces and vice versa.
CTX private networking QSIG over IP can support up to 128 separate nodes.
For bandwidth requirements, refer to the section “Strata Net QSIG Over IP and IPT Bandwidth
Requirements” on page 112.
Refer to “CTX Analog CO Line Interface Compatibility” on page 80 if you are planning to mix
analog and IP QSIG circuit cards in the same Strata CTX system.
BIPU-Q1A interface parameters include:
• 100Base-TX: Automatic recognition and switch
• Transmission: TCP/IP, UDP/IP
• Protocol: IP QSIG (ECMA-336), NAT compatible
• Protocol: RTP/RTCP for voice transport
• Voice coding: G.711, G.729A, selectable
• Priority process: Diffserv/IEEE802.1p
An example of Strata Net QSIG over IP networking is shown below.
Strata CTX
Router
or Server with
or without VPN
BIPU-Q1A
LAN
Strata Net IP
*
VPN
Tunnelling
Strata CTX
*
Router
or Server with
or without VPN
BIPU-Q1A
LAN
Figure 22
IP Network
(Internet, Intranet, WAN)
Strata Net IP
Strata CTX
*
Strata Net IP
* T1, Fiber, etc.
Router
or Server with
or without VPN
BIPU-Q1A
LAN
6755
QSIG Over IP Example
Strata CTX General Description
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