can we talk between two pc on lan?

Question

can we talk between two pc on lan using two modems conncted to pc and using conventional phones

Answer 1

You mean setup a LAN line using two modems and an RJ11 instead of Ethernet hardware? I have not seen such hardware in ages.

Null modem cables are still around; got one but have no need for it, use them for one-to-one direct line before.

Answer 2

Yes! You can talk between two PCs on lan, provided both of you having a pc to pc calling software, you can do so by using VoIP technology where your IP address acts as your phone number. My IP address e.g. 10.23.65.33.

Try www.skype.com

Call Schemes from a remote location
Calling the Remote Desktop host PC from a remote location is accomplished using the public IP address, as assigned by the ISP, or fully qualified domain name of the PC or router/NAT/firewall.

To find the public IP open Internet Explorer on the PC at the remote location and go to sites like http://checkip.dyndns.org/ or http://www.whatismyip.com/ and note the reported IP address. If the firewall/NAT/router is configured correctly, the call will be successfully passed to the appropriate PC.

If the ISP assigns a dynamic IP then another solution is to setup an account with one of the dynamic naming services that map a fully qualified domain name to the IP. In my case I use a FREE service from No-IP.com. The No-IP.com software runs on my XP Pro box and on a time schedule basis contacts the No-IP.com servers. The No-IP.com servers then know what your IP is and maps that to a fully qualified domain name. That information is then propagated over the public internet. You then call the Remote Desktop host PC using the fully qualified domain name.

---------------------- added later -----------------
From: rocky

Subject: lan talk

Message:

Sir,
i mean two pc(OS : XP) are in LAN network and they are having modem cards . can i connect ordinary telephone sets to the modem card and talk between the pc s(can it possible without any third party software )

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Hello, I thank you for your question.

Unfortunately, the answer is 'no' as well as ‘yes’ to your question..

Why the answer is ‘No’?

(1) When you talk; you create a mechanical sound through your voice

(2) Then that mechanical sound is converted into corresponding electrical signal by the mouth piece of your telephone receiver or even a microphone.

(3) Then the electrical signal (corresponding to the original sound) is further amplified which is analogue in nature. ALL THESE HAPPENS IN THE SOUND CARD.

(4) But since a computer is a digital device, it can only understand digital signals therefore, amplified electrical sound signal – which is analogue in nature - is converted into corresponding digital signal within the computer.

(5) This digital signal is then sent to the modem. A modem stands for modulator/demodulator that can convert encoded digital information (sent by the computer) into an analog signal then mixing this signal with a carrier signal – which is also analogue in nature – the modem (a) then transmits the signal to another modem (b) through telephone line/wire.

(6) The modem first converts the digital signal into corresponding analogue signal. However, since hearable sound frequency (analogue) is very low (bet. 20 Hz & 20 KHz), the wavelength is very high in amplitude, while a frequency (high in amplitude) is not suitable for transmission to a considerable long distance. Therefore a method is applied to transmit the low frequency signal, the method is known as Modulation. Modulation is a process by which original low frequency signal is mixed with a comparatively high frequency signal – known as carrier frequency - then transmitted.

NOW IF YOU WISH TO HEAR THE TRANSMITTED SIGNAL, YOU CAN NOT REALLY HEAR THAT SINCE THE ORIGINAL SOUND SIGNAL IS ALREADY MIXED WITH A CARRIER FREQUENCY FOR TRANSMISSION WHICH IS VERY HIGH IN FREQIUENCY. (Above hearable frequency: bet. 20 Hz & 20 KHz).

(7) At the receiving (other) end the receiving modem (b) modulates sent analog carrier signal and converts it to corresponding encoded digital information (demodulation) that the receiving computer understands. The modulated frequency here is demodulated where the original signal is extracted from the carrier frequency before reproduction of the original sound.

Why the answer is ‘Yes’?

BECAUSE MANY MODEMS ALSO PROVIDE HEARABLE SOUND FREQUENCY SO YOU CAN EASILY HEAR THE ORIGINAL SOUND BY USING A HEAD PHONE AND TALK USING A MIC BOTH CONNECTED TO THE MODEM. THE OTHER MODEM CONNECTED TO ANOTHER PC THROUGH THE LAN ACTS THE SAME WAY BUT THE SIGNAL IS COMMUNICATED TO YOUR COMPUTER VIA LAN CONNECTION.

TO REPLACE A MIC & HEADPHONE BY A TELEPHONE RECEIVER YOU NEED TO ADD AN ELECTRONIC CIRCUIT DESIGNED TO DO SO!!

CIAO !

Answer 3

The LAN cable could be clipped so as that that's in pass over mode(diverse whilst connecting a working laptop or computer and a swap/router)whilst related,the two the lighting fixtures furnishings on the back next to the ethernet slot could glow.this is step a million.The pass to community connections on top of issues pannel,choose the gadget you prefer to configure,and specify its TCP/IP address.the two the pcs could be on the comparable subnet.you could attempt 192.168.0.a million and 192.168.0.2.make certain the two are on the comparable workgroup too.Then restart your comp and attempt pinging one comp from the different.which could wade by way of properly once you're settings are wonderful.THen proportion the folders on the previous one and reproduction it to the hot one.If sharing doesnt artwork,run an ftp server on one(like unfastened ftpd) and reproduction the comparable one the different using an ftp shopper(like filezilla)