Rob Huffman Tue, 09/23/2008 - 05:21

Hi Ahmed,


Lab Equipment and IOS Version

Passing the Voice lab exam requires a depth of understanding difficult to obtain without hands-on experience. Early in your preparation you should arrange access to the equipment covered on the exam, and listed below.

MCS 7835 Call Manager/CRS Servers

MCS 7835 Unity Server

Catalyst 6503

3725 Routers (WAN, Gatekeeper, Gateway, PSTN Emulation)

Cisco Unity Express

2651XM H.323 Gateway

VG248 Analog Phone Gateway

ATA186 Analog Telephone Adapters

Catalyst 3550 with inline power

IP Phones

Analog Phones


Software Versions

Any major release of Call Manager, Unity or CRS that has been generally available for six months is eligible for testing in the CCIE Voice lab exam. You may see more recent IOS versions installed in the lab, but will not be tested on those features unless indicated below.

All routers use IOS version 12.4 Main Train

Catalyst 6503 series switches use Switch OS version 7.6(X)

Catalyst 3550 series switches use IOS version 12.1EA

CCM version 4.1(3) with latest SR

Unity version 4.0(5)

CRS version 4.0(1)

Network Interfaces

Fast Ethernet

Frame Relay

Telephony Interfaces





Hope this helps!


MARWA AHMAD Tue, 09/23/2008 - 05:37


thank you

i know it is 12.4

but i just need to know the exact ios on the routers , inorder to be away from any bugs

Chris Deren Mon, 09/29/2008 - 05:09

The exact version is not published as it can change without notice, it could be anything on the 12.4 train.


jo-knight Sun, 10/19/2008 - 11:24

Does anyone know if there are any planned changes for CCIE voice to be announced between now and the start of 2009.

I just did my R&S and wanted to make a start on Voice towards the end of this year, and not sure if I would get it all done within 6 months if an announcement was potentially made at the start of January.


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