4. Sequence number
The table below lists the additional items in each message type:
Failed Handoff
(Sent whenever the Wireless IP Telephone
attempted handoff, but failed trying.)
Successful Handoff
Security Error
Call START
Call End
Audio stats
Audio error threshold exceeded
(Sent if payloads missed rate or payloads late
rate exceeds 2%, or if the average jitter is
over 2 msec)
Radio stats
Issue 6, January 2011
Failed AP MAC
Failed AP signal strength
Current AP MAC
Current AP signal strength
Failure reason
Wireless IP Telephone Transmit Power to Old AP
Wireless IP Telephone Transmit Power to New AP
‡
FCCKM
– Failed to use CCKM for fast handoff
‡
FOKC
– Failed to use OKC for fast handoff
New AP MAC
New AP signal strength
Old AP MAC
Old AP signal strength
Reason for handoff
Other candidate APs:
MAC
Signal strength
Reason not used
Wireless IP Telephone Transmit Power to Old AP
Wireless IP Telephone Transmit Power to New AP
FCCKM
‡
– Failed to use CCKM for fast handoff
FOKC
‡
– Failed to use OKC for fast handoff
AP MAC
AP signal strength
Security mode
Error details (mode-dependent)
Call type (telephony, OAI, PTT)
AP MAC
AP signal strength
AP MAC
AP signal strength
AP MAC
AP signal strength
Payload size (in msec)
Payloads sent
Payloads received
Payloads missed (not received)
Payloads missed rate (over last 5 seconds)
Payloads late
Payloads late rate (over last 5 seconds)
Average jitter
Same as audio stats
AP MAC
AP signal strength
Directed packets sent
Directed packets received
Multicast packets sent
Diagnostic Tools
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