What, if any, are the benefits gained by using VoIP over VoFR?

What, if any, are the benefits gained by using VoIP over VoFR?

What, if any, are the benefits gained by using VoIP over VoFR? We have experienced intermittent voice problems on VoFR. Will VoIP solve this problem and can it (VoIP) be seamlessly integrated with IP applications with priority queueing and QOS on routers?

    Requires Free Membership to View

    Login

    By submitting your registration information to SearchNetworking.com you agree to receive email communications from TechTarget and TechTarget partners. We encourage you to read our Privacy Policy which contains important disclosures about how we collect and use your registration and other information. If you reside outside of the United States, by submitting this registration information you consent to having your personal data transferred to and processed in the United States. Your use of SearchNetworking.com is governed by our Terms of Use. You may contact us at webmaster@TechTarget.com.

A properly configured voice over frame relay network should provide good performance, so it is important to understand the nature of the intermittent voice problem and what is causing it. Your service provider or the device equipment manufacturer may be able to assist you with troubleshooting this problem.

Whether you're using VoFR, VoATM, or VoIP, if devices in the network are not properly configured, you can experience problems with voice quality. Also, if there are large delays or the available bandwidth is overwhelmed, there will be problems with voice quality. With VoIP devices, you can typically configure IP level QoS (e.g., IP Precedence, IP Tos, or DiffServ). This can help to prioritize delay sensitive traffic such as voice and video over data traffic.

You really have to look at your bandwidth utilization and understand the maximum amount of bandwidth you wish to use for voice traffic. For a VoIP call using compressed voice (G.729a), the approximate bandwidth used (one way) is 24 kb/s (including Ethernet and IP overhead). For a VoIP call using uncompressed voice (G.711), the approximate bandwidth used (one way) is 87 kb/s (including Ethernet and IP overhead). This will help you to understand what type of broadband service plan you need.

This was first published in January 2005