[cisco-voip] PRI to BRI Conversion with Cisco IAD

Chris Taylor chris.taylor at sac-corp.com
Tue Dec 27 14:37:55 EST 2011


Working on my first video teleconferencing project.

Problem:
                Equipment I inherited; Polycom VSX 7000 with a BRI Interface needs to interface and call out over a 3 Channel PRI ISDN Circuit.  Also received a NT384 device (U Interface)  that doesn't seem to work over the PRI circuit.

Is there a configuration that could be used with following IAD 2431 to perhaps mux down the PRI channels to hand off a BRI interface to my VTC unit (Polycom VSX 7000)

SAYRESVTC#sh ver
Cisco IOS Software, 2400 Software (C2430-IS-M), Experimental Version 12.4(20060718:201451) [acphan-V124_4_T2_1 104]
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Tue 18-Jul-06 16:38 by acphan

ROM: System Bootstrap, Version 12.3(7r)T2, RELEASE SOFTWARE (fc1)

SAYRESVTC uptime is 2 minutes
System returned to ROM by power-on
System image file is "flash:c2430-is-mz.xo"

Cisco IAD2431 (R527x) processor (revision 4.1) with 119808K/11264K bytes of memory.
Processor board ID FHK1045F11Y
R527x CPU at 225MHz, Implementation 40, Rev 3.1
1 On-Board Sixteen FXS Analog Voice Module V2.1
2 FastEthernet interfaces
2 Serial interfaces
1 Channelized T1/PRI port
DRAM configuration is 64 bits wide with parity disabled.
63K bytes of non-volatile configuration memory.
System fpga version is 250027
System readonly fpga version is 250025
Option for system fpga is 'system'.
62720K bytes of ATA System CompactFlash (Read/Write)
0K bytes of ATA Slot0 CompactFlash (Read/Write)

Configuration register is 0x2102


Any assistance is greatly appreciated.

V/R,
Christopher Taylor | Sayres and Associates Corporation
IT Specialist

55 M Street SE, Suite 200, Washington, D.C., 20003
Phone: (202) 355-0922 x 2004 | Mobile: 571-218-2452
E-Mail: chris.taylor at sac-corp.com<mailto:chris.taylor at sac-corp.com>
www.sayresandassociates.com<http://www.sayresandassociates.com/>
A Native American, Service-Disabled, Veteran-Owned Small Business

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