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Questions tagged [telecommunication]

21 questions
8
votes
2 answers

In Skype, how can I hang up from a group call that I started without ending the call for everyone else?

I often will start a group call (which makes me the "creator" of the call) but need to leave before others on the call wrap up. How can I hang up from my end while allowing the remaining users to continue on the call? I have tried promoting other…
Mike Eng
  • 387
4
votes
1 answer

How does a mobile site get to know which mobile operator I'm using?

I was browsing internet from my mobile, and I noticed that mobile site were showing ads specific to the mobile operator that I was using. I switched the sim card of a different mobile operator and browse the same sites again and now this time they…
wolverine
  • 41
4
votes
1 answer

What is difference between 3G, 4G and Wifi Technology?

I am truly confused with the difference between 3G, 4G and Wifi Technology. Can please somebody explain me the difference?
Imran Qadir Baksh - Baloch
  • 523
4
votes
6 answers

Do all the network cards use the same frequency to send signals to wire?

I am comparing my cable TV wire to my network wire. In a TV cable wire, different frequencies are used by different TV channels. And since a certain channel use a fixed frequency, I think the only left way to represent different signal is with the…
smwikipedia
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2
votes
3 answers

The physical working paradigm of a signal passing on wire

Possible Duplicate: How does network interface card work physically? Hi, This may be more a question of physics, so pardon me if there's any inconvenience. When I study computer networks, I often read something like this in order to represent a…
smwikipedia
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2
votes
0 answers

Concatenated SMS leads to way longer sending time using AT commands

What is is the culprit here? When I am sending Concatenated SMS using a TP-UDH header with my PDU message it takes exponentially the size and parts of the message to arrive compared to the same messages sent without UDH. I suspect the carrier…
nestarz
  • 21
1
vote
0 answers

Using Asterisk with multiple phone lines (PSTN)

I've had experience working with Asterisk over VoIP. Did pretty complex stuff with it as long as it had ethernet cables and internet connected. I've gotten used to connecting the box to an ITSP and getting DIDs pointed to the server and each DID…
Mark
  • 11
1
vote
0 answers

What is meant by conditioning of a cable?

I just came across this, "Twisted pair cable supports a maximum data rate of 1Mbps without conditioning and 10Mbps with conditioning." What exactly does conditioning mean. EDIT: I came across it in my school text book,
Nibin
  • 11
0
votes
1 answer

Landline phones over ethernet

Is there anyway to be able to access the landline phone signal over Ethernet of a LAN as due to shoddy cabling in our house has only left us with 1 connector that still works when you plug your phone in. In the majority of rooms in the house there…
TechKno
  • 108
0
votes
1 answer

Using Powerline for telephone and internet

As far as I know, CAT 5 cable can be used to run a 100 Mbps Ethernet and a telephone connection (2 pairs each). Would it be possible to use power line with this cable?
Chaos
  • 73
0
votes
1 answer

how to record normal/PSTN calls using asterisk

i want to recording incoming calls and outgoing calls using asterisk. when i make a call from my mobile phone with a custom dialer. my calls will not be a voice calls i.e. Voice over ip , that will be the normal trunk calls. so does anyone has idea…
Hunt
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0
votes
1 answer

Listen to multiple RTSP Streams

I plan on having multiple RTSP streaming servers on the same network: rtsp://192.168.1.2 rtsp://192.168.1.3 rtsp://192.168.1.x Is there any way I can listen to all of them in Windows 7 at the same time? I don't need them to be synchronized into a…
TheFrack
  • 289
0
votes
1 answer

Asterisk replacement for multi-line/multi-phone/all ring Nortel system?

I'm trying to replace an aging Nortel phone system with an Asterisk based system. The existing system work something like this: Phone 1- -Line 1 Phone 2-- --Line 2 Phone 3---Server---Line 3 Phone 4-- --Line 4 …
kewltek
  • 1
0
votes
1 answer

Temporary Long-Range (WiFi?) Camera Network

I work for an urban municipality and we are scheduling an event where we would like to setup a cheap, temporary camera network. I need to send the signal from downtown (where all of the cameras are) to one specific building. This building is a…
TheFrack
  • 289
0
votes
0 answers

Wireless connection among two or more laptops without internet

My question is that I want my two devices (laptops) to screenshare like whatever is shown on one laptop should be displayed on other like AnyDesk/TeamViewer. However I want this type of communication to be done without internet over 1km distance…
Aaisha Khan
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