Panasonic KXTA308 Installation Manual - Page 346
Operation
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6.3 Operation PROBLEM The unit does not ring. PROBABLE CAUSE • An outside (CO) line number is not programmed. • The Ringer Volume Selector is set to "OFF". During a power failure, the A PT is connected to the extension connected to jack. JACK 01 does not operate. POSSIBLE SOLUTION • Program outside (CO) line numbers. • Set to "HIGH" or "LOW". Disconnect the PT and connect a single line telephone. Originating an outside call cannot be performed. The corresponding CO button does not exist on the proprietary telephone. Program the CO button. See the Flexible Button Assignment in the User Manual. A tone type single line telephone (SLT) user cannot make a call. There may be something wrong with a DTMF receiver. 1. Select "Enable" for DTMF receiver 1 and "Disable" for DTMF receiver 2 in program [107]. 2. Make a call using a tone type SLT connected to one of extension jacks 01 - 08. 3. If you cannot make the call, the problem may have been caused by DTMF receiver 1. If the call can be made, go to step 4. 4. Try DTMF receiver 2. Select "Disable" for DTMF receiver 1 and "Enable" for DTMF receiver 2 in program [107], and make another call. If you cannot make the call, the problem may have been caused by DTMF receiver 2. 6-4 Troubleshooting