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Avaya IP Office

The Avaya IP Office platform is the ultimate in converged voice and data technology. IP Office brings a combination of voice and data applications formerly reserved for only the largest corporations. Cutting edge customer service with easy to use tools is now available to the smallest of businesses.

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Calculating the Disk Size Required for Recordings

The table shows how many gigabytes (GB) per day you typically use given the number of recording ports you have and the average utilization of these ports over the working day. The figures are based on the assumption that your compressed recordings will be at 16kbps (a single G.726 file) and that the utilization is averaged over an 8-hour working day. Should your circumstances differ, recalculate the figures according to the hours over which your port utilization is averaged.

The assumptions are:

  • Compressed Audio - G.726 16kbps per call.
  • Resulting in - 7.2MB per hour of recording.
  • Hours per day - 8 (typical single shift).

Type of Operation

PBX Extn
Busy - Extn
Typical Call Center
Extreme Call Center
Ports Utilization
  • Note - All figures are in GB per day.

Total requirements

Use the following table to determine the required disk capacity for your recorder.

Allow For Comments
10GB System overhead and call details database MSDE database, Java Virtual Machine, and call details for 5 million call records online. Buffering space for DVD archive, etc.

Daily Usage x(days required online + safety margin)

Compressed recordings.  


Environment Daily Storage Total Storage
Typical office recording

30 extensions in normal PBX environment

10% utilization over 8 hour day)

30 days online storage

1 million call records kept online

(G.726 16kbps recording)
10 + (30 x 0.2) = 16GB
Small Informal Call Center

30 extensions in light use
(30% utilization over 8 hour day)

90 days online storage

(G.726 16kbps recording
10 + (90 x 0.5) = 55GB



Avaya 4630 IP Telephone Compact business center: one of many tools for use with the IP Office Another great telephone by Avaya


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