• Context
There are different context values that might show up in the downloaded CDR file. The actual value can vary
case by case. Here are some sample values and their descriptions.
from-internal: internal extension makes outbound calls.
ext-did-XXXXX: inbound calls. It starts with "ext-did", and "XXXXX" content varies case by case, which also
relate to the order when the trunk is created.
ext-local: internal calls between local extensions.
• Source Channel, Dest Channel
Sample 1:
Figure 316: Downloaded CDR File Sample - Source Channel and Dest Channel 1
DAHDI means it is an analog call, FXO or FXS.
For UCM6302, DAHDI/(1-2) are FXO ports, and DAHDI(3-4) are FXS ports.
For UCM6304, DAHDI/(1-4) are FXO ports, and DAHDI(5-6) are FXS ports.
For UCM6308, DAHDI/(1-8) are FXO ports, and DAHDI(9-10) are FXS ports.
Sample 2:
Figure 317: Downloaded CDR File Sample - Source Channel and Dest Channel 2
"SIP" means it is a SIP call. There are three 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.
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