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Hi All,
I have a question.
Can we use CDMA in PSTN.The LAN lines phone which we use usually in our homes in Australia, do they run on PSTN technology or they some where uses a CDMA portion as well.
Simple question.Is CDMA only utilised for Cellular phones in Telecomm companies?

Edited by: admin on 05/16/2010 - 04:32

There is no quesiton of CDMA in PSTN


with the help of protocol convertion (BGP) you can use CDMA and PSTN

harinder (not verified)
Can we use CDMA in PSTN.

This way proposes a novel method to perform concurrent data transmission through the public switched telephone network (PSTN). More specifically, a hidden channel is created by removing the voice components below the perceptual masking threshold. The method of code division multiple access (CDMA) is then used to transmit data through the hidden channel. At the receiver, since digital data is imperceptibly embedded into the hidden channel, conventional telephone sets are able to access the voice signal without additional equipments. Meanwhile, a customized telephone set can extract the hidden data and provide concurrent services. Experimental results show that a data rate at hundreds bits per second can be achieved with a bit error rate (BER) of 10-3

CDMA and PSTN are two different things

Even though they are different, CDMA can indeed be used within PSTN. And it works!