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What codecs are supported by Cisco CallManager 4.x?

April 26, 2017cisco callmanager codecs supported

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What codecs are supported by Cisco CallManager 4.x?

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A. Cisco CallManager 4.x supports these codecs: • G.711 a-law and u-law. • G.723 (only supported by the IP phones VIP30 and SP12+). • Automated bandwidth selection. • G.723.1. • G.729 Annex A and Annex B. • Global System for Mobile Communications (GSM)-Enhanced Full Rate (EFR) and Full Rate (FR). • Wideband audio – proprietary 16-bit resolution and 16 kHz sampled audio.