October 31, 2005
NOTICE:
THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.
Products Affected
|
Products Affected |
|---|
|
CP-7940G IP Phone |
|
CP-7960G IP Phone |
Problem Description
The IP Phone may reboot if volume is set to maximum, a call is placed to it, and the caller makes a loud noise.
This occurs with the Session Initiated Protocol (SIP) or Signaling Connection Control Part (SCCP) IP Phone software loads.
Background
The circumstances under which this anomaly may be manifested are as follows:
-
IP Phone A has volume set to maximum.
-
Phone B calls IP Phone A.
-
IP Phone A picks up call either through Headset Button or by picking up Handset.
-
Caller at Phone B speaks loudly or or blows into the Phone B microphone.
-
IP Phone A reboots.
Problem Symptoms
The IP Phone reboots, dropping the call. The IP Phone returns to on-line status after re-registering with the call manager application.
Workaround/Solution
Workaround:
Reduce the volume on the IP Phone.
Solution:
Phone firmware loads were released to resolve this behavior.
-
For IP Phones with SIP, download version 7.5 or later releases
-
For IP Phones with SCCP, download version 7.2(1) or later releases
These phone firmware downloads may be obtained from the cisco.com Voice Software (registered customers only) download site.
Look for the protocol appropriate to your IP Phone.
DDTS
To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.
|
DDTS |
Description |
|---|---|
|
CSCsa68504 (registered customers only) |
(SIP) Audio is heard in the speaker while using handset |
|
CSCef53862 (registered customers only) |
(SCCP)Faint audio is heard in the speaker while using handset |
For More Information
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:
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