Knowledgebase: Unified Communications > SmartNode
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How much bandwidth does a VoIP call use?
Posted by Elena Brambilla, Last modified by Daniel Lizaola on 12 December 2017 04:56 PM
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The required bandwdidth depends on various factors such as: - Codec - Codec samle length - Protocol stack (IP, PPP, Frame-Relay, etc.) - Tranmission Network (DSL, ATM, etc.) - Echo Cancellation As a general rule of thumb the bandwdith for one call in one direction is between 10 and 110 kb/s. An excellent overview of how these parameters can be tuned and effect the VoIP bandwdith can be found in the following TechNote. http://patton.com/technotes/smartnode_qos.pdf | |
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