IP Office Contact Store
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 |
10% |
30% |
70% |
100% |
10 |
0.1 |
0.2 |
0.4 |
0.6 |
20 |
0.1 |
0.3 |
0.8 |
1.2 |
30 |
0.2 |
0.5 |
1.2 |
1.7 |
- 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. |
|
Examples
| 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 |
0.2GB/day
(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 |
0.5GB/day
(G.726 16kbps recording |
10 + (90 x 0.5) = 55GB |
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