What are you studying for?
 
David Bombal CCIE #11023
Select Partner

Comments

I think the new version of the command memorizer is brilliant and has been a massive help during studying for the exams

Howard Hooper

This is my first newsletter, I came across your IOS tips ebook searching through google, and didn't mind getting the newsletter. Now, I'd like to say wow!

Its awesome, I'm really glad I signed up--kron jobs on IOS? I didn't know you could do that! The information is incredibly well presented.

When I can tear myself away from study, I'll update my blog, and give your site a plug, you provide some fantastic resources that you don't really see anywhere else, thanks!

Greets!
Jason Freeman

EXCELLENT STUFF (Newsletter)

Vishal Bangia
Hi David,

Success!!! I passed - 83% :-)  Thanks for the course this week, it's been excellent. I've been buzzing every night when I got home, my Wife thinks I'm turning into an anorak!!! Your presentation of the course was, in my opinion, superb - I
found the way it was snappy & fast paced kept me switched on to the subject all the time, even though I was completely flaked out at the end of each evening!

Thanks again - if I ever get the opportunity to recommend your training services within BT then I will do so without hesitation.

Regards,
Neil.

Hi David,

Thank you so much for sharing all the great IOS commands! This was definitely a fantastic find for me and will assist me immensely.

Regards,

Rose

Hello,

Thanks for the great newsletter ; excellent work and very well designed.

I would love to see more of Security Articles specially on the Cisco ASA and Network Management.

Regards
Asif Vanoo

Hi David,

Thanks you very much for all those nice, very nice newsletters!

Keep up the good work!

Kind regards,

Maurice Mulder
The Netherlands

Luv the VPN Configurator ... used it 3 times this week already!

Ken Granger

LA
United States

Dear David

thanks for the latest newsletter.

The section about macros came just at the right time and with very useful examples

best regards
Matthias Isola

Thanks for the answer, it's been getting to me for months, and I just keep forgetting to ask you for a solution. You have no idea how much time that little command is going to safe me. I'm working on a huge security network which has over 80 firewalls some of which have over 3000 lines of access-lists.

It's a pain in the neck trying to find a single host with a certain port to see if the access-list exists, so this is going to safe me a stack of time :)

Jay Whale
South Africa

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CVOICE Links E-mail
Written by Administrator   

Exam & Course Information:

Exam Details:

642-446 CVOICE 6.0

Course Details:

Cisco Voice over IP (CVOICE 6.0)

Books:

Cisco CallManager Best Practices

Troubleshooting Cisco IP Telephony

Configuring CallManager and Unity: A Step-by-Step Guide

Cisco IP Communications Express: CallManager Express with Cisco Unity Express

Cisco CallManager Fundamentals

Integrating Voice and Data Networks

URLS:

Design Tools & References:

SRND guides

Cisco Power Calculator

Cisco DSP Calculator

Cisco Codec Calculator

SAFE Security Guides

Traffic Analysis for Voice over IP (Erlang Models Explained)

UK Numbering Plan - The National Numbering Scheme - By Ofcom

T1 CAS Signaling:

Understanding How Digital T1 CAS (Robbed Bit Signaling) Works in IOS Gateways

Configuring and Troubleshooting T1 CAS Signaling

Implementing T1 CAS

Configuring MGCP CAS MD Package

T1 NFAS

Configuring NFAS with Four T1s

E1 R2 Signaling:

E1 R2 Signaling Configuration and Troubleshooting

E1 R2 Signaling Theory

Number Translations:

Number Translation using Voice Translation Profiles

NM-HDA

Understanding High-Density Analog Voice/Fax Network Modules (NM-HDA)

IP Communications High Density Analog Voice\Fax Network Modules

CMM

Cisco Catalyst 6500 and Cisco 7600 Series Communication Media Module Features

Communication Media Module IP Connectivity

EVM-HD

Cisco High Density Analog and Digital Extension Module for Voice and Fax

H323

H.323 Overview

H.323 Technology Home

Cisco IOS H.323 Gateway Configuration for Use with Cisco CallManager

Cisco IOS H.323 Configuration Guide

Troubleshooting No Ringback Tone on ISDN-VoIP (H.323) Calls

Troubleshooting No Busy Tone and No Announcement Messages H323 Calls

MGCP

MGCP VoIP Call Admission Control

Configuring MGCP-Controlled Backhaul of BRI Signaling in with Unified CallManager

Configuring Tone Download to MGCP Gateways

Configuring MGCP PRI Backhaul and T1 CAS Support for Cisco Unified CallManager

Busy-Out ISDN B-Channels in Cisco CallManager Configuration Example

SIP

SIP: Measurement-Based Call Admission Control for SIP

DNS SRV Records - SIP e-mail resolution 1

DNS SRV Records - SIP e-mail resolution 2

ISDN

Troubleshooting ISDN BRI Layer 3 Using the debug isdn q931 Command

Understanding debug isdn q931 Disconnect Cause Codes

DSP Farms

Cisco DSP Calculator

CallManager and IOS Gateway DSP Farm Configuration Example

High-Density Packet Voice Digital Signal Processor Modules (Details & pictures)

Cisco Enhanced Conferencing and Transcoding for Voice Gateway Routers

Understanding Codecs: Complexity, Hardware Support, MOS, and Negotiation

IP-IP Gateway / CUBE

Fundamental Cisco Multiservice IP-to-IP Gateway Configuration

Cisco Multiservice IP-to-IP Gateway with Gatekeeper

Gatekeeper

VoIP with Gatekeeper

Understanding H.323 Gatekeepers

Understanding Cisco IOS Gatekeeper Call Routing

Troubleshooting Gatekeeper Registration Issues

Troubleshooting GUP, Alternate Endpoint and Load Balancing

Cisco High-Performance Gatekeeper

Cisco Multiservice IP-to-IP Gateway

Cisco Multiservice IP-to-IP Gateway with Gatekeeper

Analog Interfaces

Understanding E&M Voice Interface Cards

Understanding Foreign Exchange Station (FXS) Voice Interface Cards

Analog DID on FXS ports

Understanding FXO Disconnect Problem (VIC-2DID)

Analog Signaling (E & M, DID, FXS, FXO)

Understanding Why Telephones in the United Kingdom Connected to Cisco FXS Interfaces May Fail to Ring

Inability To Break Dialtone in a Voice over IP Network

Q.SIG

Siemens QSIG Interoperability: Calling Name and Call Forward Do Not Work

Interoperability

Cisco Interoperability Portal

Cisco CallManager and Cisco IOS Interoperability Guide

Cisco Voice Gateway Router Interoperability with CallManager

Faxing

T.37 = Unity IP Fax Outbound Gateway Configuration Example

T.37 = Unity IP Fax Inbound Gateway Configuration Example

Configuring T.37 Store and Forward Fax

Cisco Fax Services over IP Application Guide

Modems

Modem Support for VoIP

SAA

Cisco Unified Operations Manager

Cisco Unified Operations Manager Home