What is dtmf dialling, Electrical Engineering

Assignment Help:

Q. What is DTMF dialling?

DTMF dialling

1.  Uses push buttons

2.  Uses 8 different frequencies in pairs.

3.  16 different characters can be represented.

4.  The frequencies used prevent generating of harmonics.

5.  Each number is represented by a high signal & low signal=

636_What is DTMF dialling.png


Related Discussions:- What is dtmf dialling

Difference between cmp and sub instructions, Mention how do the following i...

Mention how do the following instructions differ in their functionality SUB: It performs changes the destination operand and the subtraction operation. CMP: Comparison instr

Dc Machine, Why maximum power output is given by a machine at an efficiency...

Why maximum power output is given by a machine at an efficiency of 50 percent?

Create a time diagram - conveyer, When the PLC is in the RUN mode it will s...

When the PLC is in the RUN mode it will switch ON the conveyer so it will run continuously. This project is divided into four outcomes: (a)    Detect block on entry, close

What is piconet, A collection of devices connected by Bluetooth technology ...

A collection of devices connected by Bluetooth technology in an ad hoc fashion.

Determine the equivalent resistance of circuit, Determine the equivalent re...

Determine the equivalent resistance of circuit: Determine the equivalent resistance of network across the source terminals and find the current drawn from the source.

Measuring equipment of ac-dc voltage and waveforms, Procedures and methods ...

Procedures and methods of the experiments A).      In order to measure the true RMS values of the currents and voltages, students used the true RMS multimeter. It requires two

Armature winding, what is use of dummy coil in DC m/c????

what is use of dummy coil in DC m/c????

What is UNIVERSAL SERIAL BUS, What is USB? USB: The USB (UNIVERSAL SERI...

What is USB? USB: The USB (UNIVERSAL SERIAL BUS) is intended to join peripheral devices as keyboards, modems, a mouse and sound cards to the microprocessor by a serial data pat

Regulation so significant, How does the ITU make sure compatibility among t...

How does the ITU make sure compatibility among the Radio systems used in dissimilar countries?  Why is regulation so significant?

Princeton and harvard microprocessor architectures, Question a) Explain...

Question a) Explain, with the aid of diagrams, the differences between the Princeton and Harvard microprocessor architectures. b) Describe why the principle of locality of r

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd