Teltone m-392 Guida Utente

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Reference Manual 
Chapter 7: Warranty, Troubleshooting, and Technical Support 
Return Procedures 
If a unit is found to be defective, contact Teltone customer service to obtain a RMA (Return Material Authorization) 
number and shipping instructions. When returning units, provide the following information: 
•  Unit model number, unit part number, and serial number (obtained from the Unit ID label on the bottom 
of the unit). 
•  Teltone RMA number 
•  All available fault information  
•  Complete shipping and billing address 
•  Repair purchase order 
History 
Old Part Number  
New Part Number 
Programmed 
M-392-A&4 M-392-B-01  Standalone 
Configuration 
M-392-A&5  
M-392-B-02 
Teltone Factory Default 
M-393-A&4  
M-393-B-01  
Standalone Configuration 
M-393-A&5 
M-393-B-02  
Teltone Factory Default 
M-394-A&4  
M-394-B-01  
Standalone Configuration 
M-394-A&5 
M-394-B-02  
Teltone Factory Default 
 
M-39XB-01/02 now supports a hardware modification to improve the ringing circuitry.  
 
 
40-400-00015, Rev. 
F                                                                                                                                                                         Page 37