LandOfFree - US Patents - Listing for Telephonic communications,Supervisory or control line signaling,Signal reception at substation

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Method for audible caller name announcement with call list featu

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Method for communicating

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Method for monitoring telephone call progress

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Method for ring signal detection

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Method for triggering content download during call setup

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Method of automatically changing a calling mode of telephone...

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Method of calling up called party, communication equipment,...

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Method of generating ring tones using melody and...

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Method to alert a phone operator by magnetic means of an...

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Motor for generating vibrational signal

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Multi-line programmable telephone call annunciator

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Multisensing circuitry for class signals and stutter dial...

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Network-based timed ring suppression

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Off-hook visual message waiting indicator

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

On-board ring signal generator

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Personal ring tone message indicator

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Personal ring tone message indicator

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Personalized telephone announcement

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Personalized telephone signaling circuitry and device, and metho