Call recording
MyVoipApp Support Team
Support@myvoipapp.com
Index
1. Description
"Call recording" service is used to record telephone conversations in a digital audio file format. In some area, this service is also named as "lawful interception (LI)". We need mention here that you MUST obey your local law or rules to use this service.
miniSipServer V6.4 or above version can support this service. By using MSS, we can record local users (extensions)' incoming calls, outgoing calls or both of them. Each call will be saved as seperated .WAV file. You can use Windows media player to play them very easily.
2. Configuration
When we want to record specific local users' calls, we can update their configurations to do that. In the local user's dialog, please click "media service" tab just as following figure described:
In the figure, we can see two items:
- Record outgoing calls - When this local user makes outgoing calls, they will be recorded and all audio streams will be saved in .WAV files.
- Record incoming calls - When this local user receives incoming calls, they will be recorded and all audio streams will be saved in .WAV files
These items can be enabled together, or enabled separately.
3. Record results
In the MSS install directory, you can find a sub-directory 'recordCalls'. Local users' calls will be saved in such directory. Each local user will have their own sub-directory. For example, All calls of local user "100" will be saved in the sub-directory "recordCalls/100".
The WAV file is named with format "caller number-called number-date-time.wav". For example, if the name of wav file is "100-101-20120310-112233.wav", that means the call is from "100" to "101", date is 2012-03-10 and the time is 11:22:33.
4. Limitation
If the local user is configured with "call recording", all of their media streams will be sent to MSS firstly, it is heavy for server to process them, so you can not try to record too many local users.
To record calls, all SIP clients/gateways MUST support G711a(PCMA) audio codec or G711u(PCMU) audio codec. MSS cannot support other audio codec when recording calls.
MSS cannot support recording video calls.