Questions tagged [telecommunication]
The telecommunication tag has no usage guidance.
21 questions
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How are third-party providers (e.g. Huawei) supposed to unintentionally take over control of their products?
In Germany, it was/is being discussed whether telecommunications providers must replace hardware and software from Chinese companies such as Huawei.
The reason given is that the foreign companies ...
- 148
0
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0
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324
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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 ...
- 27
1
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0
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64
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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 ...
- 11
1
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0
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425
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What is meant by conditioning of a cable? [closed]
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 ...
- 11
0
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2
answers
129
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Packet forwarding in the same network
I know how port forwarding works. but, if two devices in the same network are running the same process, for example suppose two devices are requesting for an HTTP response. Since both services will be ...
0
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1
answer
103
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How does telephone infrastructure change with multiple phones [closed]
I am imagining the typical POTS configuration where one telephone set is connected to modem, which is connected to a phone jack inside a two-story building. The wires from the phone jack are somehow ...
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-1
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1
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171
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How can one use CDMA(code division multiple access) in individual communications [closed]
Recently i have learnt that unlike GSM that is used in mobile handset for communication, cdma uses broad spectrum frequency ie. the full available spectrum. Basically it is a form of spread spectrum. ...
0
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0
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2k
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Can Hardwired Telephone Lines be used to Extend a DSL Connection?
My current configuration has what appears to be an RJ11 connection going from the wall jack directly to my DSL modem.
Here is a picture of the faceplate; the blue jack is the phone line and the green ...
- 101
0
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2
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149
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How to limit the fiber modem bandwidth
I'm gonna install fiber in my home with an 100 Megabit connection.
I have 3 pc, I want to give to the first computer just 5 Megabit, the second computer 10 Megabit and the last one 85Megabit.
How can ...
- 31
0
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1
answer
14k
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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 ...
- 108
0
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1
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4k
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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?
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1
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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 ...
- 133
0
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1
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1k
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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 ...
- 289
0
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1
answer
400
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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-...
- 1
0
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1
answer
258
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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) ...
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4
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1
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531
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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 ...
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4
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1
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2k
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What is difference between 3G, 4G and Wifi Technology? [closed]
I am truly confused with the difference between 3G, 4G and Wifi Technology. Can please somebody explain me the difference?
8
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2
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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 ...
- 387
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0
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1k
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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 ...
- 11
2
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3
answers
3k
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The physical working paradigm of a signal passing on wire [duplicate]
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 ...
- 694
4
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6
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2k
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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 ...
- 694