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SearchEnterpriseVoice.com's top five VoIP tips

Our readers' opinions are very important in determining our content. Here are the top five VoIP tips according to your page views. Take a look and tell us what you think.

Our readers' opinions are very important in determining our content. Here are the top five VoIP tips according to your page views. Take a look and tell us what you think.

VoIP certification tracks - Nortel's support certifications
Companies are implementing IP telephony more frequently on their data infrastructures. The increased deployment has created a need for certified IP telephony engineers to provide proven, best-of-breed technology. Networking equipment maker Nortel Networks provides certifications in four areas; this tip covers those in IP telephony support.

IP Telephony Unveiled
Every now and then a book comes along that's more than just a technology primer. Kevin Brown's recent title for Cisco Press, IP Telephony Unveiled (2004, ISBN: 2-58720-075-9) is just such a book. Part of Cisco's successful and interesting Network Business Series, IP Telephony Unveiled is short and direct (only 186 pages) but also full of useful information, descriptions, and analogies.

Tools for VoIP planning, monitoring and management
Whether you're planning for a VoIP or video networking deployment (or other services where quality of service issues can impose significant requirements), or simply charged with managing such networks, access to proper tools can support such efforts.

Redunancy and availability for simple gateway circuits
You may have some little-used FXS-type analog circuits in your network that function as gateways between the VoIP network and the PSTN. While the trunks are low capacity (only one call at a time) and relatively cheap, you still may have a need for redundancy or high availability on these trunks. Redundancy and high availability requirements usually demand two physical routers. So how do you connect them to a single POTS line?

VoIP congestion management: Hybrid queuing methods
As detailed in a previous tip regarding the congestion management component of QoS, basic queuing methods (Priority, Custom, and Weighted Fair) provide the foundation behind prioritizing traffic based on their classification or characteristics. Due to the special network performance requirements essential to transmitting voice traffic across a data infrastructure, queuing techniques carve out highly available, low delay bandwidth across the data network. Because these basic queuing methods do not meet the congestion management requirements for Voice over IP traffic, hybrid queuing methods were developed to satisfy those necessities. This tip provides the details of the hybrid queuing methods available today.


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