Questions tagged [voip]

Voice Over Internet Protocol is a name of a family of technologies that allows transmission of voice over an established network connection. What is usually discussed, though, is Internet Telephony - bidirectional voice (and lately video) transmission over public networks.

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32 views

Zoiper functionality with SSL VPN connection + Wifi, compared with Internet Quota

I have a question related to 'How Zoiper Works Technically?'. First thing, I use Zoiper to contact my friends/colleagues from another country on the same company networks. Zoiper is a free softphone ...
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15 views

Can you use a regular SIP line as a trunk

I have an asterisk box that can route calls internally. I am trying to determine if I can connect the asterisk box to standard SIP line like AT&T's Digital Voice. I understand that I would only ...
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13 views

Wi-fi bridge connection to ethernet without passing VPN (voip phone)

I have setup a Windows 10 Wi-fi to Ethernet connection so that remote users can connected their VOIP phones to their computers as they are ethernet only. Unfortunately I believe this also means the ...
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26 views

How to split domain with subnets and 2 default gateways

I'm the only IT guy in our school and have inherited a flat 10.0.0.0/8 network.  I have no problems, yet with future expansion in mind (BYOD) I need to rethink my current setup because a lot of ...
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56 views

Using Zyxel Modem As A Simple Voip ATA Device

I have a Zyxel P-2602HWL modem/router which I want to use as a Voip ATA device only. In other words, I already have a router that I am using and I only want to use the Voip functionality of the Zyxel ...
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81 views

Is it possible to make a landline voice call from a mobile connected by wifi to all-in-one box? [closed]

I pay my Internet Service Provider for internet access and landline telephone. He’s provided me with a phone number plus one of those all-in-one connect boxes that contains a modem, a router exposing ...
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12 views

Internet and VOIP phone

I have an Orange Live box internet service provider. It has a dedicated slot to connect my phone. All work well. I have extended the ethernet from one of the ports to another router which just has ...
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Query on using Goip - outgoing call issue

We have purchased the Goip 1, and are in the process of activating the same. while doing so, the difficulty we are facing is in making an outgoing call : when making a call on voip extn No. 302 (...
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90 views

are bluetooth headset calls on a 3G Chromebook possible?

Would it be possible to use a bluetooth headset to make a cell-phone call? Or is the 3g capability only for data? I'm inferring this is an OS limitation.
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33 views

Query Regarding routing a normal phone call through PC

I have an urgent requirement of routing a normal phone call to PC. There are additional requirements such as – Call will come from landline/mobile number be to a fixed number, and this call should be ...
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Failing to initiate a multifuction printer fax connection with VOIP

My wife's computer setup has an old multifunction printer (discontinued Brother MFC-7820N). It includes fax capability, and when we originally bought it, we had an actual telephone landline and the ...
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PDNS-Recursor with Enum

Our VoIP provider is giving us cnam services via Enum. We built a PDNS-Recursor server to comunicate with the provider. The way the callerid is returned by the provider does not match the format our ...
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PC How to record phone call - other side speech is NOT recorded?

On VOIP phone call, using Zoiper software on computer (Windows 10), I am trying to record the entire phone call conversation but the problem is that Audacity, regardless if incoming ( * ) or outgoing (...
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Is there a way to monitor a GrandStream registration status?

I have a provider locked GrandStream device and I had some issues where the device would unregister itself during the night and I would lose my phone line. I cannot afford to not notice when the VoIP ...
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179 views

Viking Door Intercom Connecting to ATA-190

I have a analog Viking W-1000 intercom connected to Cisco ATA-190 box, then into Cisco Unify Call Manager. Partition, CSS, etc have been set up, and for testing purpose, when an analog phone is ...
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How to get a VOIP number not flagged as VOIP

I want to get a VOIP number for the US because I currently live outside of the US. I have been using Google Voice for a long time, and it has worked well. For privacy reasons, I want to move away from ...
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48 views

How does a router know which device handles calls?

How does a home router know which connected device is meant to handle a VOIP call? Is there a specific broadcast that is sent out? My home setup uses an analog telephone adapter (ATA) box in bridge ...
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Add “+” to Cisco SPA122 (latest firmware)

I use Twilio, and I'm required to use the full ISO spec "+" before all phone calls. MY PBX is Asterisk 13.26.0, connected through private network. I have a Cisco SPA122, with the latest firmware. ...
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How to connect a handset to a computer for VoIP [closed]

I'm trying to move away from having physical phones to just using softphones on my desktop computers. I know there are a ton of great headset options, but I don't really want to go that route. I would ...
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278 views

Hot to force Asterisk to write date in UTF-8 charset?

CentOS Linux release 7.6.1810 (Core) Kernel: localhost.localdomain 5.0.7-1.el7.elrepo.x86_64 MariaDB: Ver 15.1 Distrib 10.4.4-MariaDB, for Linux (x86_64) using readline 5.1 Asterisk: 16.3.0 built ...
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236 views

Emulate a cell phone on a computer to authenticate a new email account

Background Many of the big email service providers now require a mobile phone number in order to create an account (a land line isn't acceptable). My understanding is that mobile phone access is ...
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49 views

No response when access web administration page of wireless router using popular browser, is it a phenomenon of hardware failure?

We have an entry level enterprise wireless router TP-Link TL-WVR1300G (Chinese page) in city B, and we have two physical servers located in city A and city B, and we setup a VoIP (SIP) trunk through ...
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231 views

Asterisk sip.conf in MySQL database

I'm able to include a phone inside a database for realtime usage. So, this code (from /etc/asterisk/sip.conf): [phone] type=friend username=phone secret=12345 host=dynamic disallow=all allow=g729 ...
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141 views

Periodic Internet Disconnection

Here is my problem: A) Goal Fix periodically disconnecting internet connection. I.e. maintain constant connection to internet (browsing etc.) while wired to router (ethernet). B) Problem I've ...
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286 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 ...
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73 views

connect to voip gateway and wifi for internet on same windows machine

I have a situation which i will try to explain: i have subscribed for a SIP line. In my country, it is delivered via a MUX device and a cat6 cable. I have connected that to my soft PBX which is ...
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How Does Making a VoIP call through PSTN Work? [closed]

for my college work i was told to draw a diagram showing "information flow" of someone making a VoIP call through PSTN and then explain how it works. After doing research for the last 3h hours stuck ...
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Understanding Yealink VOIP phone configuration

I know how to connect my VOIP phone to asterisk. My asterisk server sometimes goes down so I will like to understand better how can I use a failover server. This guide: http://download.support....
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2k views

How do you fix “No Trust List Installed” error on a Cisco 7942G VoIP Phone?

I have a 7942G. I'm trying to connect it to Asterisk. Looking at Settings -> Status -> Status Messages, I see this: Error Updating Locale SEP############.cnf.xml No Trust List Installed I'm only ...
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SOHO routers Simultanous VOIP connections / connection tracking tables and packets per second

I am planning on deploying VOIP for up to 6 simultaneous calls from VOIP handsets (through the Internet using a connection with a single world-facing static IP, over SIP, to a single IP address on the ...
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2k views

Dialer.exe in windows 10 | Alarm Call Out | Work with MS Access

Does anyone ever use and know how to configure dialer.exe in windows 10? I'm looking for an auto dialer that can integrate with MS Access to dial out certain users (at least able to add 3-4 users ...
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829 views

Asterisk call through browser

Currently, we are using two version of IPPBX (VOIP) System in our office, which are CUCM v11 and Briker 1.2. We want to call directly through web browser instead of using a soft phone (or any desktop ...
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510 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 ...
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133 views

Route all traffic throuch a Linux machine

I want do route all traffic from and to two IP phones (SNOM D305) through a Linux machine for debugging purposes. The IP phones have a builtin 2-port switch each and the setup looks like this: ...
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680 views

How do I send Asterisk recording emails with a post-call script executed from FreePBX?

The script I have designated FreePBX to call, when called directly from the CLI sends the email flawlessly. The emails are not triggered after a call takes place, however. Background context: https://...
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104 views

My voice comes out like a guitar on Discord

Discord (VoIP) never works for me. When I speak, people always tell me I sound like a guitar or a robot, or that my voice is really glitchy. I can hear them fine though. I have tried changing the ...
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74 views

Ekiga under Windows: registered but calls fail

I have a VoIP account with sub-accounts. Sub-accounts are assigned 3-digit extensions and I can call between sub-accounts using regular desktop phones connected to my ATA. Now I am trying to set up ...
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Possible to tracert Google Voice calls, if I route my phone# voIP on Linux? Linux Mint Rosa 17

Wondering if it's possible to tracert anonymous voip calls I'm receiving if I connect my phone number to a Linux voIP server (Asterisk, sipX, OpenPBX, etc.)? My idea is that I may receive info from ...
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582 views

Do I need to wire a CAT5e cable a certain way to provide digital TV over fiber optic?

Fiber optic internet, phone, and TV service comes in to an outside mounted ONT. Two CAT5E cables run into the home from 2 of the 6 ports on the the ONT, which I am assuming is one for internet and one ...
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1k views

twinkle configuration for Sangoma

I'm able to run AsteriskNOW virtualized on my local system. Also, I'm using Anveo on two different SIP hard phones. Anveo works fine, indicating that the network handles SIP fine. Now, how do I ...
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592 views

WhatsApp low quality voice call on high speed LTE modem

I've this TD-LTE modem with internet connection speed of around 20Mb/s. With this connection, everything works fine except the WhatsApp voice calls. What could be the reason for delayed voice and ...
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541 views

How to setup a voip server connected to a ISP voice line

My home fibre bradband ISP provides me with a Huawei HG8240 optical network terminal. This has one ethernet port and one phone port. The phone port is active, but unused at the moment. The ethernet ...
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463 views

Use of RTP Marker Bit

RFC 3551 indicates that it should be set only on the first packet for a talkspurt and that it must not be set if silence suppression isn't in use. I am not clear though on whether or not there exists ...
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941 views

Asterisk (VOIP) port forwarding on TP-LINK

I have local Asterisk server on Ubuntu 16.04. Its address is 192.168.0.101:5060 and I would like to be allowed to talk with other users when I am outside local network. I tried this but it doesn't ...
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1k views

Bluetooth headphones connect to “Forward VoIP Calls to Handsfree” but not to “Listen to Music”

After restarting my computer, I can always connect my bluetooth headphones just fine. However, if they disconnect (intentionally or not) I open the device under "Devices and Printers" and connect ...
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804 views

What does the expected packet loss option in libopus (ffmpeg) actually do to the encoded file?

I am encoding some files into the opus format in ffmpeg using the VoIP application setting (this is for research). One of the parameters you can set is Expected Packet Loss (%). I understand the ...
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216 views

Using a VoIP router behind a DrayTek 2760 router

I'm struggling with the following problem: I use a DrayTek Vigor 2760 as router 1 to access internet by using a VDSL line. The DrayTek behaves as a Modem and DHCP server with IP 192.168.1.1. My ...
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537 views

I am having error in Asterisk

I am working with Asterisk 13 on OpenWRT(Linux distro) and having following error. -- SIP/sipphone-00000000 is making progress passing it to DAHDI/1-1 [Aug 7 22:40:44] ERROR[13139][C-00000000]: ...
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2k views

How to whitelist IP’s on an Asus router to allow VOIP to pass through without dropped packets?

I recently installed my newly purchased an Asus RT-N56U and quickly noticed that I was getting disconnected from different VOIP services, namely both Mumble and TeamSpeak but otherwise my connection ...
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159 views

SIP based door entry and phone system

For a residential home, we've allowed for a door entry system, where we'd like to the following: Push button at door entry panel calls all intercom stations (handsets) - audio only From any intercom ...

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