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Cisco Bug: CSCtc43993 - Battery life can be reduced with periodic ClearPrompt SCCP message

Last Modified

Mar 04, 2010

Products (1)

  • Cisco Unified IP Phone 7900 Series

Known Affected Releases


Description (partial)


Battery life can be reduced when the 7921/7925 receives a periodic ClearPrompt SCCP message as that puts the phone into active mode for a short period of time.


Using latest version of CME, and configuring the default prompt to specific
string like XYZ:

    <CmdBold>Telephony service</CmdBold>
            <CmdBold>system message</CmdBold> <CmdArg> XYZ </CmdArg>

In certain CME configuration environment, the 7921/7925 phones would
drain more battery power.  When the administrator for the CME configured
the default prompt for the 7921/7925:

    <CmdBold>Telephony service</CmdBold>
            <CmdBold>system message</CmdBold> <CmdArg> XYZ </CmdArg>

The CME will periodically sent:

Thus, the WLAN module in 7921/7925 would go into ACTIVE mode very often.
This result in draining of battery power.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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