Packetizing telecommunications switch
View Patent ↗When receiving a telephone call, a telecommunications switch ( 150 ) analyzes the telephone call to determine if the telephone call includes a data transmission that complies with a predetermined data protocol. If the telephone call includes a data transmission that complies with a predetermined data protocol then a demodulator ( 212 ) demodulates the digital information signal contained in the data transmission. A data network interface ( 216 ) packetizes the digital information signal into a packet for transmission into a data network ( 118 ). Similarly, the data network interface ( 216 ) receives packets from a data network ( 118 ). The packets are converted into a data transmission for transfer over a telephone call to a device terminated by the telecommunications switch ( 150 ).
1. A method for generating data for a data network with a telecommunications switch, the method comprising the steps of:
A) receiving a telephone call;
B) determining with the telecommunications switch whether the telephone call includes a first data transmission conforming to a predetermined data protocol, the first data transmission including a first digital information signal;
if the telephone call includes the first data transmission conforming to the predetermined data protocol, then:
C) terminating the predetermined data protocol with the telecommunications switch; and
D) demodulating the first digital information signal from the first data transmission;
E) generating a transmit packet that includes the first digital information signal, wherein the telecommunications switch only generates the transmit packet when the first data transmission includes the first digital information signal; and
F) wherein, if the telephone call does not include the first data transmission conforming to the predetermined data protocol, then the telecommunications switch transferring the telephone call to a telephone network.
2. The method of claim 1 further comprising the step of:
G) transmitting the transmit packet into the data network.
3. The method of claim 1 further comprising the steps of:
G) receiving a receive packet from the data network, the receive packet including a second digital information signal;
H) modulating the second digital information signal into a second data transmission conforming to the predetermined data protocol; and
I) transmitting the second data transmission in the telephone call.
4. The method of claim 1 wherein a digital signal processor analyzes the telephone call to determine whether the first data transmission conforms to the predetermined data protocol.
5. The method of claim 1 wherein the predetermined data protocol is one of a modem and a facsimile protocol.
6. The method of claim 1 wherein the step of determining whether the telephone call is the first data transmission comprises determining whether one of a called number and calling number for the telephone call is a predetermined number indicating a data call.
7. The method of claim 1 further comprising the steps of:
if the telephone call includes the first data transmission conforming to the predetermined data protocol, then:
G) translating a called number for the telephone call into a data network indicator; and
H) establishing a first data connection to a data network based on the data network indicator.
8. The method of claim 7 further comprising the step of:
I) generating a transmit packet that includes the first digital information signal.
9. The method of claim 8 further comprising the step of:
J) transmitting the transmit packet into the data network.
10. The method of claim 7 further comprising the steps of:
I) receiving a receive packet from the data network, the receive packet including a second digital information signal;
J) modulating the second digital information signal into a second data transmission conforming to the predetermined data protocol;
K) transmitting the second data transmission in the telephone call.