How Much Hard Drive Space Does a Recorded Call Consume?

This article outlines the sizes of the different recording formats (codecs) and the amount of disk space needed to store files in these formats..

Written by Adrian Angwenyi

Updated at April 13th, 2023

Table of Contents

List of Codecs

SpectrumVoIP's phone system records audio in the G.711 Wav format.

 
Recording Type Encoding Rate Number of Channels Bits/Second Bytes/Minute Bytes/Day
G.711 Raw RTP  64Kbps   1  133Kbps  1MB/min  1.5GB/day
G.729 Raw RTP  8Kbps  1  26Kbps  200KB/min  300MB/day
G.711 Wav  128Kbps  2  133Kbps  1MB/min  1.5GB/day
GSM  13Kbps  1  22.8Kbps  171KB/min  240MB/day

NOTE: These numbers are estimates and may vary depending on various factors. These factors include the total number of phone calls, call quality for 3rd parties and other file-limiting factors.