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Security concerns for VoIP customers
Cisco launches new professional cert: Cisco Certified Voice Professional (CCVP)
SearchEnterpriseVoice.com's top five VoIP tips
VoIP deployment trends and vendor ratings
Fitting Voice into your Network
Next generation IP telephony
Best Practices for Securing IP Telephony
Industry coalition seeks to head off VoIP 911 requirements
2005 promises yet another 'Year of VoIP'
Voice over what??
Failover option makes VoIP service more attractive
SPIT, or Spam over Internet Telephony
First Wi-Fi handset makes its debut
Duties of an IP telephony gateway when integrating VoIP and the PSTN
VoIP and NAT
What about mobile VoIP?
VoIP certification tracks - Nortel's design certifications
Probing to maximize MTU efficiency and deliver QoS
VoIP certification tracks - Nortel's support certifications
VoIP Certification tracks - Cisco's story
Unified messaging rides again!
A new face for telephony?
IP telephony pilots are taking flight
802.11r : Handling tricky issues for Wireless VoIP
A prominent VoIP advantage - Applications
Link efficiency within QoS - Assuring VoIP packets have access to the network
VoIP calculator site
Policing and shaping within QoS
The business case for IPT
Mier Communications' approach to VoIP security ratings
QoS congestion avoidance techniques to clear way for VoIP
Wireless IP telephony heightens security concerns
VoIP congestion management: Part II - Hybrid queuing methods
More titles for the IP telephony bookshelf
NetAlly VoIP: Another testing and monitoring tool
VoIP and IP telephony in IT certifications
Consumer IP telephones: Tricks of the trade
Book review: IP Telephony Unveiled
LLQ and Priority Queues
VoIP over wireless
IP RTP priority
Servicing multiple customers
Redundancy and availability for simple gateway circuits
VoIP marking schemes
Free VoIP tools
Which QoS approach is for you?
Got new QoS features?
Preparing for VoIP
Cancel the echo chamber
Tips for choosing a telephony system for the SMB
A VoIP-monitoring solution
VoIP in the Enterprise: Preparing your network
IP Telephony Demystified - Chapter 4, IP Telephony Protocols
Power to the sniffers
Securely access your IP telephony accounts
Online! The Book - Chapter 28: Voice over Internet Protocol1
Stop DoS attacks against your VoIP
Benchmark now, rejoice later
DHCP for VoIP
Don't forget to use multicast
Get some IP phone security info
Got the right E&M?
Thinking about inline power?
Survivable remote site telephony
Cope with your new users
VoIP training redux
Learn your own setup from auto-QoS
Integrate AD and CallManager
Troubleshooting VoIP with sniffers
Check out these free goodies
Restrict endpoint options
Supervise those disconnects
VoIP? Think about voice mail
A case of the jitters
Can you reduce signaling delay?
First things first with VoIP
Gauging user quality perceptions
Use a busyout monitor
Watch out for asymmetrical routing
Do you want to overprovision?
Ethernet settings for IP phones
Determine call-quality types
Enable the hookflash relay
Hey Mac! What vocoder you got?
Dig into packet-loss stats
Check packet loss to manage call quality
The essential VoIP bookshelf -- II
Configure NetMeeting for VoIP gateways
Manage traffic with NBAR
Debugging Windows QoS
Ping Cisco IP phones from PCs