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1. (WO1995014344) METHOD AND CIRCUITRY FOR CONTROLLING VOICE MAIL, CALL LOGGING AND CALL BLOCKING FUNCTIONS USING A MODEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1995/014344 International Application No.: PCT/US1994/011872
Publication Date: 26.05.1995 International Filing Date: 19.10.1994
Chapter 2 Demand Filed: 31.05.1995
IPC:
H04M 1/215 (2006.01) ,H04M 1/56 (2006.01) ,H04M 1/57 (2006.01) ,H04M 1/654 (2006.01) ,H04M 1/677 (2006.01) ,H04M 1/82 (2006.01) ,H04M 3/36 (2006.01) ,H04M 3/38 (2006.01) ,H04M 3/533 (2006.01) ,H04M 11/06 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
1
Substation equipment, e.g. for use by subscribers
02
Constructional features of telephone sets
21
Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
215
by non-intrusive coupling means, e.g. acoustic couplers
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
1
Substation equipment, e.g. for use by subscribers
56
Arrangements for indicating or recording the called number at the calling subscriber's set
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
1
Substation equipment, e.g. for use by subscribers
57
Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
1
Substation equipment, e.g. for use by subscribers
64
Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
65
Recording arrangements
654
Telephone line monitoring circuits therefor, e.g. ring detectors
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
1
Substation equipment, e.g. for use by subscribers
66
with means for preventing unauthorised or fraudulent calling
677
Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
1
Substation equipment, e.g. for use by subscribers
82
Line monitoring circuits for call progress or status discrimination
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
3
Automatic or semi-automatic exchanges
22
Arrangements for supervision, monitoring or testing
36
Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
3
Automatic or semi-automatic exchanges
38
Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
3
Automatic or semi-automatic exchanges
42
Systems providing special services or facilities to subscribers
50
Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers
53
Centralised arrangements for recording incoming messages
533
Voice mail systems
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
11
Telephonic communication systems specially adapted for combination with other electrical systems
06
Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
Applicants:
AST RESEARCH, INC. [US/US]; 16215 Alton Parkway Irvine, CA 92718, US
Inventors:
SUWANDHAPUTRA, Johannes, H.; US
Agent:
SEWELL, Jerry, T.; Knobbe, Martens, Olson and Bear 16th floor 620 Newport Center Drive Newport Beach, CA 92660, US
SIMPSON, Andrew, H.; Knobbe, Martens, Olson and Bear 620 Newport Center Drive, 16th Floor Newport Beach, CA 92660, US
Priority Data:
08/152,83715.11.1993US
Title (EN) METHOD AND CIRCUITRY FOR CONTROLLING VOICE MAIL, CALL LOGGING AND CALL BLOCKING FUNCTIONS USING A MODEM
(FR) PROCEDE ET CIRCUIT SERVANT A COMMANDER DES FONCTIONS DE MESSAGERIE VOCALE, D'ENREGISTREMENT ET DE BLOCAGE D'APPELS AU MOYEN D'UN MODEM
Abstract:
(EN) A telephone line monitoring circuit (100) for a MODEM monitors the TIP and RING lines (106, 108) of the telephone line. A first circuit (110) detects when a local phone goes off-hook while the MODEM is on-hook by sensing a decrease in a differential voltage between the TIP and RING lines (106, 108). A second circuit (120) detects the pick up of a local phone while the MODEM is off-hook by detecting a change in the impedance between the TIP and RING lines (106, 108). A third circuit (120) detects the hang up of a remote phone connected with the MODEM while the MODEM is off-hook by detecting a temporary break in the DC loop between the central office and MODEM. A snoop circuit (130) monitors the telephone line for DTMF signals while the MODEM is on-hook.
(FR) Un circuit de contrôle de ligne téléphonique (100) pour modem contrôle les lignes T et R (106, 108) de la ligne téléphonique. Un premier circuit (110) détecte le moment de décrochage d'un téléphone local tandis que le modem est accroché au moyen de la détection d'une chute de tension différentielle entre les lignes T et R (106, 108). Un deuxième circuit (120) détecte la prise d'appel d'un téléphone local tandis que le modem est décroché au moyen de la détection d'une modification de l'impédance entre les lignes T et R (106, 108). Le troisième circuit (120) détecte le raccrochage d'un téléphone à distance relié au modem tandis que celui-ci est décroché au moyen de la détection d'une rupture temporaire dans la boucle de courant continu entre le central et le modem. Un circuit d'écoute (130) contrôle la ligne téléphonique afin de détecter des signaux multifréquence en code 2 tandis que le modem est accroché.
Designated States: AU, CA, CN, JP, KR
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0729684CA2176110AU1994080198