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39

What you need is an FXO card for your PC. This is a PCI card with a phone socket in it, and it effectively works as a PSTN (public switched telephone network) phone on a card. You plug this into your wall socket just as you would a telephone. Then you use PBX software (such as Asterisk) to mediate the calls. You would need a way to interact with the PBX, ...


12

The simple answer is no, you cannot make a typical computer into a PSTN-connected PBX without a new piece of hardware: an "FXO card". An analog modem cannot perform as a voice-service FXO as they are designed only to process data bits asynchronously (i.e., V.92 protocol) – that's why modems are much cheaper and more common than FXO cards. A LAN card's port ...


7

Spare Cat-5/5e/6? Sure. If you need RJ11 instead of RJ45, you'd need to snip off any existing RJ45 connection and replace it with an RJ11. For a single phone line, you only need 1 pair (2 wires) out of the existing 4 (but use a matched pair). For a 4-conductor/2-line RJ11, use 2 pair. For a full 6-conductor/3-line RJ11, use 3 pair. Here's a wiring ...


5

The second link that slhck posted hits it right on the head. The keyboard number pad has the layout it does because that's the same way a calculator is laid-out. The idea was that accountants and others who frequently-used calculators would find it easier to use the number pad, as opposed to the numbers off of the top row. As a developer, I always hit ...


4

Actually Skype themselves have now come up with a multi-user (up to 9) video conf. Tested it last week and it looks fine. At this writing it's in Beta, with a "free trial", though I can't see how they can charge for it while it's still in Beta...


3

http://tinychat.com/ It's a web app so no software to install. It includes a chatroom feature and offers you option to record the conference. I find it pretty cool.


3

We've used WebEx at work with good results in the past. Supports both video conferencing as well as desktop sharing between clients. People can even dial in to a conference over the phone if they don't have a microphone. Since you've said this is work-related, the cost at $49/month may not be too bad.


3

Hmm... I thought that I posted an answer earlier but maybe I didn't. Anyhoo, CAT3 cable will support 10mbps Ethernet (10BASE-T) but not FastEthernet (100BASE-TX) so it should be possible to use it for Ethernet if there are enough pairs and if the connectors are terminated correctly. It doesn't matter which wires you use as long as you use the same colors on ...


3

Maybe this, not free http://www.sound-snooper.com/en/features.php . Audacity says it does sound activated recording, its free http://audacity.sourceforge.net/


3

Yes, there is, a PCI fax modem. or for laptops, a USB fax modem Then any good old "Caller ID" software will do what you're looking for.


3

Linux command line: linphone includes a scriptable linphonec command-line version. Starting linphonec with the --pipe option will create a socket in /tmp that one can write to and read from. It fulfills all your requirements and I've tested (for my own uses) all of them successfully: Calling via SIP, transmitting DTMF sequences, recording a call to file, ...


2

A facsimile machine, much like a computer modem, is designed to work at voice frequencies. Given that the ADSL filter works with voice frequencies on a normal telephone, it will work fine with a fax machine as well.


2

I suspect you have a setup similar to this one: A strong signal enters the house at the ISRA point. If you split the line you get two weaker signals. Traditionally the line is split and two filters are applied. One to block anything but the sounds/frequencies needed for an analog telephone. And one with a different frequency range for DSL. That that I ...


2

Currently they only support Tollfree calls to these regions: France: +33 800, +33 805, +33 809 Poland: +48 800 UK: +44 500, +44 800, +44 808 USA: +1 800, +1 866, +1 877, +1 888 Taiwan: +886 80 How do I dial toll free numbers (for example, +1 800, +1 866 and +1 877 number series)?


2

Yes, it is possible. For this you need a software that works as a PBX (e.g. asterix) and a FXP card or device (e. g. Cisco/Linksys/Sipura SPA3102).


2

I don't think you actually need a "router" for this. There are devices called "ATA" (Analog Telephone Adapter). Technically- they enable every "regular" analog phone to be used with VOIP services. For example, Vonage uses "Phone Adapter"s, which you can use with your home router. VOIP routers are just Routers with embedded ATAs. Just make sure that the ...


2

No. Phone wire is Cat3, it's quality is much too low to support modern Ethernet (which requires Cat5 or higher). HPNA adapters can use phone lines to tranmit 802.3 frames; but WiFi would be much cheaper.


2

No additional hardware is no problem if your computer (modern notebook?) has a microphone and speaker. However, to reduce or avoid crosstalk, an earphone plugged into the audio out connector would help. There is plenty of software that can connect your microphone and speaker to asterisk, e.g.: Ekiga, Linphone. You don't like VoIP, but you call over voip ...


2

You need find voip phone with changable ringtone. Simplest variant is cisco 7940/7960 used phone(30-50usd each) After that you need have in all places where you put phone ethernet (local network) Need have router, server for asterisk For connect landline you need have fxo sip addapter, for gsm you need gsm sip gate or usb dongle supported by chan_dongle. ...


2

VOIP is a specific component of "internet telephony". VOIP is typically considered internet telephony between two non-analog lines. Internet telephony without VOIP aims to create a cross-over between analog (PSTN) phone lines and an IP based client.


2

IIRC, the originating FAX is supposed to emit it's carrier tone as soon as the connection is made (whereas an originating data modem waits for the answering side to emit a carrier tone first). So an answering device can listen very briefly to the line and determine if it's FAX or voice.


1

not a conclusive answer, but i think you should be fine. ADSL works at the higher frequencies (which is what the filter filters and splits out) and fax works on the normal voice-frequencies (which is why you can hear it if you accidentally ring a fax machine with a normal phone) so i'd be very suprised if it didnt work


1

No. There is (practically) no difference between VOIP and Internet Telephony, they are pretty much synonymous. VOIP stands for Voice over IP. IP is, of-course, the protocol/underlying language of the Internet. Voice in this context is the same as telephony. Neither term implies a specific mechanism for transmitting or encoding the voice (ignoring the ...


1

You can't create (what you would think of) as an Internet connection using Hyperterminal, although you can get 2 computers to communicate over it - and this is probably the simplest way of communicating between 2 systems, but does not do an aweful lot unless you have additional software and/or someone on the other end. [ This is how "BBS's" used to work in ...


1

An RJ12 cable will work in an RJ11 connector, but the third pair won't be used. You can use three or four pair cable with an RJ11 connector as long as you follow the relevant standards. Using an RJ11 cable with an RJ12 jack may not work well as the third pair may be required. Some RJ11 cables have only 1 pair of wires, and won't work with RJ11 devices ...


1

Should the fax machine sit behind a DSL filter or not? Yes it should. ADSL Filters & Splitters Generally speaking the terms "micro-filter", "splitter" and "ADSL filter" mean the same thing. When your telephone line is ADSL enabled it is able to carry information on different frequency ranges: ADSL uses the higher frequencies to ...


1

A fax machine uses the same frequencies that an analog telephone uses, so it should be connected in exactly the same way: behind the splitter. The splitter filters out the higher ADSL frequencies for those devices, which otherwise might see interference and fail to function or even interfere with your ADSL signal.


1

Check the section 6.1 in the Recommendation ITU-T E.164: SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS International operation – Numbering plan of the international telephone service It says: 6.1 International ITU-T E.164-number length ITU-T recommends that the maximum number of digits for the international ...


1

Tut Systems sells baluns that can be used to use phone wire for low-speed ethernet, however, using wifi is going to give better performance. You could use VDSL adaptors, but, the cost of those for the short range 100mb/sec is going to exceed the cost of getting 802.11n adaptors and a gateway. Getting anything above 100mb/sec over those wires is going to be ...


1

I ended up buying the Blue Yeti USB mic and using it with Skype — and it worked beautifully. I had 10 people in the room, 4 air conditioners blasting, and people speaking softly — and everyone could hear everyone else. Recommended!



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