Statistics; Figure 228: Downloaded Cdr File Sample - Source Channel And Dest Channel 2 - Grandstream Networks UCM6510 User Manual

For UCM6510, DAHDI/(1-2) are FXO ports, and DAHDI(3-4) are FXS ports.
Sample 2:

Figure 228: Downloaded CDR File Sample - Source Channel and Dest Channel 2

"SIP" means it's a SIP call. There are three possible format:
(a) PJSIP/NUM-XXXXXX, where NUM is the local SIP extension number. The last XXXXX is a random
string and can be ignored.
(c) PJSIP/trunk_X/NUM, where trunk_X is the internal trunk name, and NUM is the number to dial out
through the trunk.
(c) PJSIP/trunk_X-XXXXXX, where trunk_X is the internal trunk name and it is an inbound call from this
trunk. The last XXXXX is a random string and can be ignored.
There are some other possible values, but these values are almost the application name which are used
by the dialplan.
IAX2/NUM-XXXXXXX: it means this is an IAX call.
Local/@from-internal-XXXXX: it is used internally to do some special feature procedure. We can simply
ignore it.
Hangup: the call is hung up from the dialplan. This indicates there are some errors or it has run into
abnormal cases.
Playback: play some prompts to you, such as 183 response or run into an IVR.
ReadExten: collect numbers from user. It may occur when you input PIN codes or run into DISA

Statistics

CDR Statistics is an additional feature on the UCM6510 which provides users a visual overview of the call
report across the time frame. Users can filter with different criteria to generate the statistics chart.
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UCM6510 IP PBX User Manual