JPH0186353U - - Google Patents

Info

Publication number

JPH0186353U

JPH0186353U JP18065087U JP18065087U JPH0186353U JP H0186353 U JPH0186353 U JP H0186353U JP 18065087 U JP18065087 U JP 18065087U JP 18065087 U JP18065087 U JP 18065087U JP H0186353 U JPH0186353 U JP H0186353U

Authority

JP

Japan

Prior art keywords

circuit

line terminal

control

telephone

calling signal

Prior art date

1987-11-27

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 238000001514 detection method Methods 0.000 claims description 4
• 238000010586 diagram Methods 0.000 description 1