FIXED UNIT FOR IMPROVING A TONE QUALITY IN A RADIO TELEPHONE HAVING A KEYPHONE LINE AS WELL AS HAVING AN OFFICE LINE

摘要

end. TECHNICAL FIELD OF THE INVENTION;The present invention relates to a fixing device for a cordless telephone.;I. The technical problem the invention seeks to solve;In the fixed device of a cordless phone that uses both a trunk line and a key phone line, it is to implement a fastening device that provides the best call quality even when connected to any line.;All. Summary of solution of design;The fixed device of the radiotelephone has a single-pole single-throw switch which is turned off when connected to a key phone line and turned on when connected to a trunk line, and the switch includes an automatic gain control terminal of the communication unit implemented in the fixed device. It features a fixture that connects between a given resistor to properly adjust the automatic gain control.;la. Important uses of the devise;When the fixed device of the cordless phone is used in combination with the key phone line and the trunk line, there is an advantage of providing the best call sound quality.