AA battery cellular phone
Accessory communication device for telephone sets
Acoustic component mounting structure for portable radio unit
Acoustic horn for use in cellular flip phones
Acoustic seal system
Acoustic transducer assembly
Adaptive mute
Adjustable earpiece
Adjustable length telephone handset
Adjustable telephone headset
Adjustable telephone headset
Adjustable telephone system and method
Alphabetic telephone
Answer detection for IP based telephones using passive...
Apparatus and method for delivery of ringing and voice calls...
Apparatus and method for protection of coin operated telephones
Apparatus for accepting and retaining a smart card
Apparatus for accepting and retaining an information card
Apparatus for anchoring a telephone handset to a telephone housi
Apparatus for anchoring a telephone handset to a telephone housi