Cisco ASA 5505 - Manual (Page 1013)

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Cisco ASA 5500 Series Configuration Guide using the CLI
Chapter 48 Configuring the Cisco Phone Proxy
Troubleshooting the Phone Proxy
Debugging Information from IP Phones
On the IP phone, perform the following actions:
• Check the Status messages on the IP phone by selecting the Settings button > Status > Status
Messages and selecting the status item that you want to view.
• Collect the call-statistics data from the IP phone by selecting the Settings button > Status > Call
Statistic. Data like the following displays:
RxType: G.729 TxType: G.729
RxSize: 20 ms TxSize: 20 ms
RxCnt: 0 TxCnt: 014174
AvgJtr: 10 MaxJtr: 59
RxDisc: 0000 RxLost: 014001
To show the logs in the buffer and logging
settings. show logging Before entering the show logging
command, enable the logging buffered
command so that the show logging
command displays the current message
buffer and the current settings.
Use this command to determine if the
phone proxy and IP phones are
successfully completing the TLS
handshake.
Note Using the show logging
command is useful for
troubleshooting many problems
where packets might be denied or
there are translation failures.
To show the corresponding media
sessions stored by the phone proxy. show phone-proxy media-sessions Use this command to display output from
successful calls. Additionally, use this
command to troubleshoot problems with
IP phone audio, such as one-way audio.
To show the IP phones capable of Secure
mode stored in the database. show phone-proxy secure-phones For any problems, make sure there is an
entry for the IP phone in this output and
that the port for this IP phone is non-zero,
which indicates that it has successfully
registered with the Cisco UCM.
To show the corresponding signaling
sessions stored by the phone proxy. show phone-proxy
signaling-sessions Use this command to troubleshoot media
or signaling failure.
To show the configured service policies. show service-policy Use this command to show statistics for
the service policy.
To show active TLS proxy sessions
related to the phone proxy. show tls-proxy sessions If the IP phone has failed to register, use
this command to see if the IP phone has
successfully completed the handshake
with the TLS proxy configured for the
phone proxy.
Table 48-6 Security Appliance Show Commands to Use with the Phone Proxy
To Use the Command Notes