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Asterisk billing support - Call Detail Records
----------------------------------------------
Asterisk generates Call Detail Records in a database or in a comma
separated text file.
* cdr_csv supports comma separated text file storage, this is the
default driver
* cdr_odbc supports UnixODBC databases, see http://www.unixodbc.org
for an updated list of supported databases, from MySQL to MsSQL
and text files.
Applications
------------
* Asterisk cmd setaccount: Set account code for billing
* Asterisk cmd NoCDR: Make sure no CDR is saved for a specific call
* Asterisk cmd resetCDR: Reset CDR
* Asterisk cmd authenticate - Authenticates and sets the account code
* Asterisk cmd SetCDRUserField - Set CDR user field
* Asterisk cmd AppendCDRUserField - Append data to CDR User field
For more information, use the "show application" command.
Fields of the CDR in Asterisk
-----------------------------
1. accountcode: What account number to use, (string, 20 characters)
2. src: Caller*ID number (string, 80 characters)
3. dst: Destination extension (string, 80 characters)
4. dcontext: Destination context (string, 80 characters)
5. clid: Caller*ID with text (80 characters)
6. channel: Channel used (80 characters)
7. dstchannel: Destination channel if appropriate (80 characters)
8. lastapp: Last application if appropriate (80 characters)
9. lastdata: Last application data (arguments) (80 characters)
10. start: Start of call (date/time)
11. answer: Answer of call (date/time)
12. end: End of call (date/time)
13. duration: Total time in system, in seconds (integer), from dial to hangup
14. billsec: Total time call is up, in seconds (integer), from answer to hangup
15. disposition: What happened to the call: ANSWERED, NO ANSWER, BUSY
16. amaflags: What flags to use: DOCUMENTATION, BILL, IGNORE etc,
specified on a per channel basis like accountcode.
17. user field: A user-defined field, maximum 255 characters
In some cases, uniqueid is appended:
* uniqueid: Unique Channel Identifier (32 characters)
This needs to be enabled in the source code at compile time
ONE IMPORTANT NOTE: If you are trying to collect records on IAX to IAX calls
you need to be aware that by default, IAX will attempt to transfer calls
in this situation (if DTMF is not required). When the transfer is completed
the call is dumped from the middle machine and thus the call detail records
will report a short call time. If you want detailed records you must
turn off IAX transfer, but unless your servers are very close together, you
will definitely get a latency hit from doing so.
----------------
2004-01-17/v0.7.1
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