Call Detail Record from a module CDR log. These CDRs are for completed calls. The bytes in a CDR for a completed call are interpretted as follows: 1: CDR type, values are: level 1 (1) level 2 (2) 2: version number 3-4: partition ID 5-6: call ID 7: protocol type, values are: DPNSS (1) Q.Sig (2) 8: unused From this position down the contents definition varies, depending on the interface level (CDR type). For Level 1 CDRs (Physical Characteristics): 9-12: originating time 13-16: answer time 17-20: disconnect time 21-22: B-channel source node ID 23: B-channel source nest ID 24: B-channel source slot ID 25-26: B-channel source port ID 27-28: B-channel source channel ID 29-30: B-channel destination node ID 31: B-channel destination nest ID 32: B-channel destination slot ID 33-34: B-channel destination port ID 35-36: B-channel destination channel ID 37: call type, values are: real (3) virtual (0) 38: special profile type, values defined in attribute recfDsmDChQOSCallType 39: info type, values are: Q.Sig speech (0) DPNSS A-law (1) DPNSS ADPCM (2) DPNSS Mu-law (3) Unrestricted data (8) Restricted data (9) 3.1 KHz audio (16) 7 KHz audio (17) video (24) 40: special profile index 41: channel profile index 42: NCP clear cause - values are defined in recfTDMChannelState 43: clear cause, values are: (If NCP clear cause is not zero, this byte is not used.) - DPNSS values: number unobtainable (0) address incomplete (1) network termination (2) service unavailable (3) subscriber incompatible (4) congestion/collision (7) busy (8) subscriber out of service (9) incoming calls barred (10) service incompatible (19) acknowledgement (20) signal not understood (21) signal not valid (22) service temporarily unavailable (23) facility not registered (24) reject (25) message not understood (26) signalling system incompatible (27) route out of service (28) transferred (29) network address extension error (30) no free channel or channel unavailable from NCP (34) channel out of service (35) priority forced release (36) access barred (41) requested channel unavailable(44) DTE controlled not ready (45) DTE uncontrolled not ready (46) normal call termination (48) unbinding (101) version invalid (103) B-channel failure cause (112) D-channel failure cause (113) socket failure cause (114) - Q.Sig values: (supported in Release 2.0.2) no cause (0) no route (3) channel unacceptable (6) normal call clearing (16) user busy (17) no user responding (18) no answer (19) call rejected (21) number changed (22) out of order (27) T302 timer expiration or invalid number format (28) status response (30) normal unspecified (31) no free channel or channel unavailable from NCP (34) link reset or temporary failure (41) requested channel unavailable(44) bearer not authorized (57) bearer not available (58) service not available (63) bearer not implemented (65) invalid call reference (81) incompatible destination (88) no bearer capability or no address or mandatory element missing (96) message type not implemented (97) message type incompatible (98) information type not implemented (99) invalid information element contents (100) unbinding (101) recovery on timer expiry (102) version invalid (103) protocol error (111) B-channel failure cause (112) D-channel failure cause (113) socket failure cause (114) 44: number of call attempts between DSMs 45-48: transmission rate For Level 2 CDRs (Data Link Layer): 9-12: setup final time 13-16: connect request time 17-20: connect response time 21-22: source node ID 23: source nest ID 24: source slot ID 25-26: destination node ID 27: destination nest ID 28: destination slot ID 29: calling number size (number of bytes, not string length) - this number is referred to from now on as x 30-(29+x): calling number (30+x): called number size (number of bytes, not string length) - this number is referred to from now on as y (31+x)-(30+x+y): called number (31+x+y): routing digits (32+x+y): unused.