Aastra DT423 User Guide - Cordless Phones for MX-ONE - Page 88
Troubleshooting
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User Manual Cordless Phones for MX-ONE™ 19 Troubleshooting This section contains information on how to solve common operational problems, and warnings you may receive. Go through the following lists if you encounter any problems. If this checklist does not solve the problem, contact your system administrator. If others have similar problems, there may be a system error. Operational Problems Fault Probable cause Action or comment No display The battery level is low or the handset is defective. Charge the battery or contact system administrator. No ringing The sound off icon is on, or ringer Long press the Sound off key, volume set to silent, or the handset or increase volume, or contact is defective. system administrator. No change in time & date PBX dependent. setting Changes in the handset appear after a maximum of 24 hours after a change in the system or by turning the handset off and on again. Error or Warning Messages Display shows Probable cause Action or comment No access The network is in range, but no access rights. Switch handset off and then switch it on again or contact system administrator. No System. The handset The handset is out of coverage or beeps once a minute handset is defective. (during max 30 minutes) with a low tone followed by a high tone (if enabled, the vibrator also follows the beeps). Stop the beep with the Sound off key and go into range. Note: When re-entering the coverage area it can take a couple of minutes before the handset automatically has registered into the system. or contact system administrator. No flash driver was found Note: This display message is only shown in English. Failed to read from flash Send the handset for service. SERVICE NEEDED Hardware error Note: This display message is only shown in English. There is a communication problem Restart the handset. If the between components in the handset. problem persists, send the handset for service. 1424-EN/LZT 103 089 B 2014-04-13 82