SOMNATEK DOCUMENT SYSTEM — FAX TRANSMISSION LOG
RECORD ID: 7A-FAX-001 | SYSTEM: SomnatekFAX v4.1.2 | NODE: SHC-FAX-01 | STATUS: ARCHIVED / UNASSIGNED
Transmission Header
TRANSMISSION DATE
2014-09-18
TRANSMISSION TIME (UTC)
09:31:02
DIRECTION
INBOUND
ORIGINATING NUMBER
UNKNOWN — not in directory; reverse lookup returned no result
RECEIVING LINE
(404) 671-9774 — SHC-FAX-01 / Somnatek main fax line
PAGES RECEIVED
0 — handshake initiated, data transmission did not complete
TRANSMISSION STATUS
PARTIAL — CNG/CED sequence completed; V.21 handshake failed at preamble; no T.30 frame established
DURATION
13 seconds
ASSIGNED TO RECORD
NONE — unassigned; auto-retained by system
REVIEWED BY STAFF
NO — operations ceased same date; no active staff on premises
Signal Notes
CNG TONE (1100 Hz)
DETECTED — standard calling cadence
CED TONE (2100 Hz)
DETECTED — answering sequence initiated
V.21 PREAMBLE
FAILED — broadband burst detected, no T.30 negotiation
POST-HANDSHAKE SIGNAL
ANOMALOUS — 700 Hz tone with structured modulation; does not match T.30 or T.4 protocol; retained as signal artifact
ARTIFACT DURATION
approx. 3.5 seconds after handshake failure
Signal Artifact Data — Post-Handshake (hex, 700 Hz modulation segment)
Raw signal artifact recovered from post-handshake buffer. 700 Hz modulated segment. Structure does not conform to standard fax protocol. Decode method not determined by system; retained verbatim.
0000 2E 2D 2D 2D 2D 20 2E 2D 2D 2D 2D 20 2E 2E 2E 2D .-... .---- ...--
0010 2D 20 00 00 00 00 1A 3F 00 00 00 00 00 00 00 00 - ....... .......
0020 00 00 00 00 00 00 00 00 FF FF FF FF 00 00 00 00 ................
0030 34 31 33 413
SIGNAL ARTIFACT NOTE (auto-generated by SomnatekFAX v4.1.2):
Post-handshake buffer contains non-standard modulation segment.
Offset 0x0000: structured tone pattern — not T.30 compliant.
Offset 0x001A: read error (matches block error at offset 0x1A3F in
document record SHC-2014-09-TRF, pages 3-4).
Offset 0x0030: terminal signal artifact. Decode not attempted by system.
— END OF AUTO-GENERATED NOTE —
Post-handshake buffer contains non-standard modulation segment.
Offset 0x0000: structured tone pattern — not T.30 compliant.
Offset 0x001A: read error (matches block error at offset 0x1A3F in
document record SHC-2014-09-TRF, pages 3-4).
Offset 0x0030: terminal signal artifact. Decode not attempted by system.
— END OF AUTO-GENERATED NOTE —
System Log
2014-09-18 09:31:02 UTC [FAX-RECV] Inbound call detected on SHC-FAX-01 2014-09-18 09:31:02 UTC [FAX-RECV] CNG tone: detected 2014-09-18 09:31:04 UTC [FAX-RECV] CED tone: sent 2014-09-18 09:31:05 UTC [FAX-RECV] V.21 preamble: FAILED — no T.30 frame 2014-09-18 09:31:05 UTC [FAX-RECV] Post-handshake signal: retained as artifact 2014-09-18 09:31:15 UTC [FAX-RECV] Transmission closed — duration 13s 2014-09-18 09:31:15 UTC [FAX-STORE] Record written: 7A-FAX-001 2014-09-18 09:31:15 UTC [FAX-STORE] Routing: UNASSIGNED — no staff present to review 2014-09-18 09:31:15 UTC [FAX-STORE] Archive status: RETAINED