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我经常遇到:
7725 TRAFFIC CHANNEL ACTIVATION FAILURE
Meaning
The system has blocked the radio time slot because the callcontrol has failed a number of times in the activation ofa radio channel.
Supplementary information fields
1 Type of the channel whose TCH activation failed.The channel type can be "TCH", "SDCCH", "Packet Data TCH"or "DTM TCH".The number value "0" indicates "TCH", "1" indicates "SDCCH","2" indicates "PDTCH" (Packet Data Traffic TCH) and "6" indicates"DTM TCH" (Circuit switched TCH of DTM connection).
Instructions
if the failure type is "PDTCH", the alarm is cancelled automaticallyby the system, when no more failure indications are observedif the channel type is "TCH", "SDCCH" or "DTM TCH", cancel the alarmwith the MML command EOR. Deblock the radio time slot by first aligningthe TRX in question with the command ERS and then removing the alignment
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