AUTOMATIC TELEPHONE
EXCHANGER   DISK TYPE TELEHPONE   WALL TYPE TELEHPONE
W.T WALLTYPE TELEHPONE   FLUSH TYPE TELEHPONE
 
AUTOMATIC TELEPHONE
W.T WALL TYPE TELEPHONE
SAW-301
1) Dtmf type : SAW-301A
2) Dtmf+sub-receiver type : SAW-301B
3) Dtmf+signal contact type : SAW-301C
4) Dtmf + headset type : SAW-301D