Questions tagged [telephony]

Telephony is the term for voice communication over distances.

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Unable to Ping Voice Servers Provided by ISP

I am using a Nokia ONT G-2425G-A router, with an Airtel home subscription in India. The ISP provides Internet access as well as a VoIP connection. It works by attaching a physical telephone to the ...
0 votes
1 answer
3k views

How to setup Outlook to use connected phone to call contacts?

I have my smartphone and and Windows 10 PC connected to the same Microsoft account. My Smartphone does show up as a connected device on the PC. I can easily initiate phone calls with the phone from ...
0 votes
0 answers
16 views

Put extensions in some logical groups, so that only extensions that have same group can call each other in FusionPBX

I need to use FusionPBX as SIP registar (Session Initiation Protocol) or SIP server, to route SIP calls to appropriate SIP accounts (extensions). Currently every extension has possibility to call any ...
50 votes
2 answers
91k views

Possible to use Bluetooth headset in Stereo mode with Mic?

Okay, so I have this bluetooth headset (it's a Skullcandy Hesh 2 Wireless). I want to use it with my PC which is running Windows 8.1. I can pair it just fine. After pairing it adds three devices under ...
1 vote
2 answers
601 views

How do I know if a regular handset will work with VoIP?

I'm looking into this VoIP stuff and I'm awefully confused. There must be a million options. When reading about any given solution, how do I know if it'll allow me to use a regular handset rather than ...
0 votes
0 answers
221 views

How to configure an IP phone in a home network

I asked a question in https://networkengineering.stackexchange.com/questions/82973/how-to-configure-an-ip-phone-in-a-home-network?noredirect=1#comment149990_82973 my ISP gave me a number with default ...
0 votes
1 answer
605 views

Do I really have a telephone-only cord connected to my RJ-45 jack?

I recently purchased an end table that comes two electrical outlets and an RJ-45 jack. The RJ-45 jack came wired with a cable I am having trouble identifying. The markings say E170689 AWM STYLE ...
0 votes
1 answer
469 views

How does G729 Codec compress down to 8kbps?

As per https://en.wikipedia.org/wiki/G.729: It has a sample frequency of 8kHz, so every second it takes 8000 Samples: Sampling frequency 8 kHz/16-bit (80 samples for 10 ms frames) It has a fixed ...
13 votes
6 answers
168k views

Convert home phone wiring to Ethernet

Can I convert phone wiring in walls to act as only Ethernet network because the phone wiring is not in use and not connected to the phone company so there is no voltage in the wires I remove the ...
0 votes
1 answer
3k views

If a Bluetooth device "features" Bluetooth 5, will it still pair & work with devices that only support an earlier version of Bluetooth?

If a set of earphones / headphones "features" Bluetooth 5, will they still pair and work with devices that only support an earlier version of Bluetooth? If an example product is helpful to ...
33 votes
4 answers
11k views

How to use a Linux system as a land phone

I have a land line connection. I would like to receive and make calls using my computer. It is a basic land line connection which also provides broadband internet. I am not asking about VoIP. I ...
2 votes
1 answer
5k views

program to dial land phone, enter password and record?

is there a program for Windows (or linux command line) platform that would do below from a command line? call a land phone number (using my SIP account) enter password record the call finishes after ...
0 votes
1 answer
599 views

How to use my TP-Link for internet and my ISP's router just for VoIP

I've just upgraded from ADSL to VDSL, at the same ISP, and with that they sent me a new modem/router and they also switched my telephone line from POTS to VoIP. I do not wish to use their modem/router ...
3 votes
1 answer
730 views

tel: tag in chrome (mac os x) opens facetime, but in gmail it opens hangouts, how to make it open hangouts everywhere?

There is a discussion about the handler of the tel tag here: https://productforums.google.com/forum/#!topic/hangouts/ItliGvezjdM However, no solution was proposed to make hangouts handle all such ...
0 votes
3 answers
1k views

Difference between VOIP and IP Telephony

I am studying CCNA, and in the curriculum I found something like following... ↓↓↓ VoIP When introducing VoIP to a network that uses traditional telephones, it is important to remember that ...
1 vote
2 answers
253 views

VOIP virtual numbers

I recently purchased a virtual number which is similiar to local landline number provided by my local provider. how voip provider can provide virtual numbers over VOIP? Do they have contract with ...
0 votes
1 answer
101 views

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 ...
1 vote
2 answers
1k views

Looking for a free VOIP solution using RJ11 PCIe card [closed]

After long hours and several days of diving layers deep through links from google searches, I've decided I just don't understand a lot of what is said about a lot of these "solutions". I don't know ...
0 votes
1 answer
3k views

How to place and receive phone calls on Debian?

I have a 4G modem with a valid SIM card on a Debian PC. The WWAN card is a Fibocom L850GL provided by Lenovo on a new X1C7. I have modem-manager-gui and I can send and receive SMS with it. How can ...
4 votes
5 answers
353 views

Teleconference between three or more people on Skype

Skype is great for 2-way video conferencing, but for my work I need to be able to patch in more than two people to the video conference. Is it possible to hook up three or more people into a Skype ...
4 votes
0 answers
1k views

How to use a Windows 10 computer to make and receive POTS/PSTN phone calls in 2019?

I would like to connect a PSTN/POTS, RJ11 (or RJ12) cable to a device and connect that device to a Windows 10 USB receptacle. I would like to be able to make and receive phone calls using the default ...
0 votes
1 answer
47 views

Is there a way I can switch on my computer or NAS with a phone call?

I would like to know if there is a way to switch on a computer or a NAS using a phone call received through a RJ11. I was thinking of sending the number followed by a password e.g. mytelnumber#...
0 votes
0 answers
109 views

IP intercom across two networks

I need my 2N IP intercom to ring phones across two different networks. NetworkA is 10.1.10.x and has a switch NetworkB is 17.148.17.x and has a switch Someone said I should buy a router to ...
0 votes
0 answers
1k views

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 ...
0 votes
1 answer
221 views

Initiating a DTLS connection

I am running a Janus WebRTC gateway on a Windows 10 Professional computer. Using this gateway I am calling a soft phone (Xlite) in our LAN from a Firefox browser (on Microsoft Azure virtual machine). ...
0 votes
0 answers
41 views

ROUTERS and SIP TELEPHONE

I have just installed a new router with enhanced firewall and wireless capabilities. The new router does not have a DECT port, the unit from my ISP does, so I'm looking to interconnect the two to ...
0 votes
2 answers
2k views

Use a raspberry pi as a POTS phone?

I would like to use a computer as a handset POTS telephone. Why? - I want to use a raspberry pi on the telephone port of an Analog Telephone Adapter (ATA) just to see if I can use it to automate ...
10 votes
2 answers
3k views

How significant is PSTN (POTS?) today? [closed]

This question comes from a guy (from Europe) which really needs some insight here, as this topic was really confusing for me (everybody explained it differently, this was wrong, this was right, then ...
0 votes
1 answer
2k views

how to integrate mobile call to a chatbot using asterisk

I am developing a voice based chatbot which can call a person and have the conversation. Currently, the chatbot uses my pc mic and speaker for input and output audio. I am trying to integrate this ...
1 vote
2 answers
1k views

How to set up a home SIP Server/Proxy for multi ring?

I have a sip account which only allows one device to be registered. When i'm at home I want incoming calls to be able to ring on multiple devices. All of these devices are connected to the local ...
1 vote
2 answers
1k views

Converting a P.O.T.S line to VoIP and simultaneously ringing a extension over VPN

Anyone with knowledge please help. I have analog phone service + internet at SITE 1. I only have internet service at SITE 2. When the phone rings at SITE 1 I would like the PC or an attached phone ...
2 votes
1 answer
1k views

Internal calls issues asterisk vicidial

I have just installed new Vicidial v7.0.3 on an i7 12 GB Ram pc I have completed all steps in the installation including OS-install, network configuration, Firewall set to internal on one of the ...
0 votes
3 answers
3k views

Cant connect to the router/Connection refused

I found today my older router "FritzBox" (Fon Wlan 7390). I searched the web for some things i could do with my router, then I found that I can use it with my new newer "Fritzbox" and use the old as ...
0 votes
1 answer
1k views

BitTorrent interference with a landline telephone

There are still certain spots in Lancaster County, PA farmland where DSL internet is the only thing available through a wire (there's satellite, but that is a different matter). Now, DSL and a ...
0 votes
0 answers
360 views

Make a phone number ring for some time using a 56KB modem

we have an old modem model US Robotics Sportster Flash and we'd need to use it to open a door in our organization, by making a phone call to an internal number (say, 101). We are running on an Ubuntu ...
2 votes
0 answers
112 views

Telephone Server, Telephones, Printers, PCs & Servers on Individual VLAN's, DHCP clashing

As a requirement for being taken over by a corporation we have been asked to stop using a firewall (Juniper SSG-140) to separate our telephone system from the main LAN. Our idea, VLANs. With some ...
3 votes
1 answer
4k views

Force firefox to open pages in a specific tab using command line

Here's the challenge: I developed Softphone Screenpop PHP App that takes caller id info and searches for a match in our db, also allows us to collect call statistics. Great for our management but it's ...
1 vote
3 answers
2k views

Internet vs. telephone cable. How can I tell them apart? Which of them is this one? [closed]

I have found a cable in a wall. I think that it is a telephone cable (the building is quite old). Is there a way to specify by the colors and wire count, what cable it is? I'm very sorry for my ...
1 vote
1 answer
381 views

VPN connection problems regarding plex media server and voice over IP

I have a home server - running Debian Jessie and plex media server. My router (fritzbox) allows all smartphones in my LAN to receive incoming landline calls (due to a certain app). This part works ...
2 votes
3 answers
928 views

What is the difference between VOIP and Internet Telephony?

These terms are often used interchangeably. Is there any difference the two terms, or is one of the terms subset of another?
1 vote
1 answer
1k views

New modem/router doesn't allow VoIP going through

Before I bought my new Netgear D7800, I had a Fritzbox 7490 provided by my swiss ISP Sunrise (see image case A). It does all tasks : modem, router, connects landline phone to be used as IP phone. ...
0 votes
1 answer
1k views

VoIP adapter for doorbell [closed]

At Network Engineering I was told that my question was off-topic there, but that I could ask it here, so here it goes... I hope that it is on-topic. Current situation At home I have a Siemens TFE/V ...
0 votes
1 answer
164 views

SIP forwarding via DNS. Possible?

Let's say I have an address sip:[email protected] that I would like to use for Internet calls, but my SIP provider is Callcentric and I need to route such calls to sip:[email protected]. ...
0 votes
1 answer
64 views

Communicating programatically over a telecommunicating alarm

I own a Yale EasyFit alarm system which allows me to control it over a kludgy telephone interface (doc here) Here's an excerpt of how it works: Remote Access The control unit allows you to control ...
1 vote
1 answer
904 views

General mask for a telephone number?

I'm making a web form and wanted to have a general template for a phone number. In my experience every phone number might be represented in 13-digits format: xxx-xxx-xxx-xxxx. For example the country ...
4 votes
2 answers
9k views

Should fax machines use a DSL filter?

I have heard DSL prevents some items that use phone lines from functioning properly, such as home alarms. First of all, is it possible to use a fax machine on the same line as a DSL modem and ...
0 votes
1 answer
303 views

Asterisk / Digium card / FreePBX : how to define on which inbound port I want to connect the telephony line on my 4-ports telephony card?

I am a newbie with Asterisk. I have a 4-ports Digium telephony card. I connected my analogic telephony line to one of these 4 ports. I have set up an IVR thanks to the FreePBX interface. I have set ...
8 votes
2 answers
22k views

Why are the numbers on keyboard numpads are not arranged like ATM or phone keypads? [closed]

Why did designers not arrange the numbers on numpads like ATM or phone keypads? I mean, 7 8 9 - 4 5 6 - 1 2 3 - 0 vs. 1 2 3 - 4 5 6 - 7 8 9 - 0. Does human brain work the reverse way when working ...
0 votes
2 answers
2k views

Direct network between computers over phone line

I have two computers with modems, that are far from each other (different locations), and do not have internet acsess. I have hyperterminal, and so how would I connect the 2 machines together (with ...
0 votes
1 answer
52 views

Routing calls to a mobile phone with a Mi-Fi?

I am traveling to the U.S. soon & I am planning to buy a Mi-Fi and a prepaid SIM with a voice and data plan being included. So, besides using the Mi-Fi as wireless data access point to which ...