User's Manual Part 2
Firmware Version 1.0.0.1  UCM6200 Series IP PBX User Manual  Page 299 of 320
Figure 184: Downloaded CDR File Sample - Source Channel and Dest Channel 1 
DAHDI means it is an analog call, FXO or FXS. 
For UCM6202, DAHDI/(1-2) are FXO ports, and DAHDI(3-4) are FXS ports. 
For UCM6204, DAHDI/(1-4) are FXO ports, and DAHDI(5-6) are FXS ports. 
For UCM6208, DAHDI/(1-8) are FXO ports, and DAHDI(9-10) are FXS ports. 
Sample 2: 
Figure 185: Downloaded CDR File Sample - Source Channel and Dest Channel 2 
"SIP" means it's a SIP call. There are three possible format: 
(a) SIP/NUM-XXXXXX, where NUM is the local SIP extension number. The last XXXXX is a random string 
and can be ignored. 
(c)  SIP/trunk_X/NUM, where trunk_X is the internal trunk name, and NUM is the number to dial out 
through the trunk. 
(c) SIP/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. 
Sample 3: 
Figure 186: Downloaded CDR File Sample - Source Channel and Dest Channel 3 
This is a very special channel name. If it shows up, most likely it means a conference call. 
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 










