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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Home structured cabling - which cables?

I've recently purchased a 25U rack with some networking for my home. I'm about to order some Cat6, but I wanted to ask a few questions: I noticed that some people have video cabling in their homes. ...
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25 views

Does Ventrilo encrypt the VoIP stream, session, and/or communications?

If you're not familiar, Ventrilo is a voice chatroom used for gaming. Here's the wiki for Ventrilo and similar software Mumble and TeamSpeak to give you an idea of what the software is about. I ...
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41 views

Home network - do I need QoS?

I'm planning to install a home network with the following hardware: Netgear UTM50-100 ProSecure Netgear ProSafe JGS524PE (24 Port switch, 12 Port PoE) ESXi Server w/ 2 VM's (AWS Storage Gateway ...
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6 views

linphone: remove/hide “default identity”

Linphone automatically generates a computer-local SIP identity called "Default Identity". "Real" SIP accounts you have at a VoIP provider need to be created as "Proxy accounts": The main window ...
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17 views

No fax detected with HP MFP

I'm trying to set up a HP LaserJet MFP (multifunction fax printer) M476dw as a fax machine. It's connected to a Linksys PAP2T analogue telephone adapter (ATA) with VoipVoip as service provider with a ...
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1answer
24 views

How to receive incoming calls on landline and mobile phone at the same time [closed]

Current situation a fixed landline for phone just one number: 123-456789 handled by one DECT base station with three phones one mobile (Windows) smartphone with its own mobile number, having wifi, ...
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23 views

Small business VoIP and wireless router [closed]

We recently changed our phone system to Ooma (http://www.ooma.com) but kept our current Internet provider, Time Warner. We have one router in the office and a booster plugged into the hallway wall ...
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17 views

Is it possible to avoid long distance charges with an IP-based phone?

Is it possible to avoid long distance charges with an IP-based phone? I am not talking about client-based VOIP services here (like Skype), I am talking about a REAL IP phone using Asterisk or some ...
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1answer
32 views

ISP blocking 5060

Here is a problem. I move my RasPBX Server (Asterisk for Raspberry Pi) to new apartment and ONLY one ISP in building which is blocking 5060 After few days fighting with Asterisk, I discovered that ...
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1answer
13 views

3cx or other IP PBX - can this be done without a paid incoming/outgoing number

I am looking to setup 3cx for family use with a couple android devices. Do I need to buy a SIP trunk if I just want to connect the ony 4 devices to each other? If i do get a line, can I only have 1 ...
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1answer
17 views

What is: Keep port forwarding of the Internet router enabled for telephony

When using a fritzbox with attached phones in bridge mode behind another router, manufacturer avm suggests to enable the option Keep port forwarding of the Internet router enabled for telephony, ...
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30 views

How to call other phone in the same house and network

I have an analog phone (Panasonic KX-TS505MX) and it is connected to my modem router (ZTE F660) via POTS. My router modem have 2 POTS slot, my question is if I buy another phone, is it possible to ...
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22 views

Increasing network range for new VOIP users

Our office using 192.168.1.0 /24 for DHCP 120 users and reserved 20 IP for servers and 10 IP for network printers. Now management decided to upgrade to VOIP phones for all users so I need to make ...
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13 views

Belkin Router OpenWRT Custom iiNet Model

I am trying to install OpenWRT or DD-WRT on an old belkin ADSL/VoIP router/modem. But, because it is a custom model made for iiNet the model number isn't listed anywhere. I have opened up the case ...
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33 views

Why is my sip software calling 105

I have a very bad sip provider "vbuzzer" but there prices are cheap ,they don't have an app for android (there is one in the store but i am pretty sure it is not official ,and a scam) and their ...
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1answer
16 views

POE phone: ethernet passthrough: is it transparent? [closed]

I have a small sub-net in my office on a Netgear router. We're getting POE phones. If I plug the POE phone into the wall jack for its power and signal, will the phone pass the ethernet data signal ...
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30 views

Cannot see VOIP calls in Wireshark 2.0.0

I received a pcap dump from a site, running Cisco JTAPI, who's VOIP traffic I need to analyse. I use Wireshark's VOIP calls analyser via the menu: The conversations display fine in Wireshark ...
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23 views

Routing VoIP traffic across VPN?

Context (the Why): I have an RV (recreational vehicle) that I travel around in, connecting to various campground wifi APs (and sometimes my own Verizon Mifi hotspot). I have a VoIP phone I use for ...
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28 views

Linksys SPA3102: receive PSTN calls on sipphone, route outgoing calls to voip provider

I'm having problems to configure my Linksys SPA3102 according to my needs. I have a sipdiscount.com account, a PSTN line, a SPA3102 router (just bought it) and a sip phone. Untill now I used my sip ...
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1answer
11 views

When in voice call and mic is active my headset has severely reduced quality

I have a steel series Siberia headset and the sound quality is great when I'm not in any sort of VOIP call. Once my mic is active though, even when the option to listen to the mic when I speak, the ...
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2answers
122 views

mp4 video for asterisk with ulaw as audio and h263 for video

Scenario: I want to play a video file on asterisk. my softphone only support ulaw/h263 for audio and video respectively. So I am allowing both formats in sip.conf file and expecting it to run. ...
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158 views

How do I setup my voip phone to use VPN server?

I've installed Bria 4 on Windows 7 pc. I've got a 15MbPS broadband connection. The Bria on my PC fail to register with this network. However if I connect to VPN server(hide.me), with the broadband ...
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190 views

Which one is more secure and efficient for VoIP: PPTP, L2TP, or TLS?

We are going to have some kind of secure VoIP implementation. We have come into make decision between VPN-based methods like PPTP or L2TP/IPsec and TLS-based methods. The question is which one is ...
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21 views

SPA504 SPA525 2nd Line Ringing when using first Line

Been fighting my provider for 8 months on this. Have SPA504 and SPA525 Phones. When on a call on line 1, when a 2nd call comes in, instead of ringing line 2, line 1 rings again. It flashes indicating ...
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2answers
102 views

Gateway iP address after increasing network to /22

I am using /24 network now but i need to increase to /22 (255.255.252.0) in order to get more space for upcoming VOIP users and mobile users. But all of our servers are configured from 192.168.1.1 to ...
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13 views

Proxy voip server to use ISP's VOIP service outside

I figured out how to get my ISP's voip credentials from my router. I used them on an iPhone voip app and it works but if I am not using isp's network it doesn't work. So I am trying to run a proxy ...
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2answers
40 views

Asterisk and x100p - Error: wcfxo: Out of space to write register 05 with 0a

I am running a IP PBX system with trixbox, what i'm trying to do is connect PSTN lines with IAX2 using X100P analogue card. The problem is i cannot call any outgoing routes. (already tried ...
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1answer
68 views

Asus NT-R56U wiress router and VoIP device

The problems are I cannot log onto my wireless router When both are connected, it doesn't work. When only one of VoIP and router are connected, it works beautifully The configuration looks like ...
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12 views

Analog Centrex to Digital Centrex

Is there a way by which we can convert analog centrex to digital centrex? I have analog centrex at office and we want to convert it to digital so want receive and call using PC. Is there a way we can ...
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25 views

Cisco IP Phone drops call when using group pickup

I have a cisco ip phone that is part of a group. When a call comes through, one phone rings for 3 rings and then rings the group (I believe this might be called a "Hunt Group"). If I group pickup ...
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64 views

Can I use a Vonage ATA as a Google Voice device?

I have a never-used Linksys WRT54GP2 Wireless Router with Vonage enabled phone ports. Recently, I heard from a friend about his successful use of Google Voice with an Obi100 device, replacing his ...
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78 views

How to create account balance for each users in asterisk freePBX system? [closed]

I have an asterisk server up and running. Users connect via extensions(IAX2). How do i create balance account for these users? any help would be appreciated.
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2answers
316 views

How to use Dial up modem for VOIP to PSTN calls?

I am new to asterisk freePBX and I want to establish calls between softphone to normal PSTN connections. So I am wondering is this possible or not? can this dial up modem will do it? It has two FXS ...
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2answers
305 views

How do i run asterisk behind an VPN?

I am new to asterisk, so basically i know nothing about IP PBX. I need to start the a VPN server with behind it asterisk and my clients should be able to connect with softphone with build-in VPN ...
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895 views

Is it possible to use firefox hello in debian iceweasel?

Now that I have Iceweasel version 38.2.1 installed in Debian Jessie (stable), this discussion says it should be possible to use the internet phone within Iceweasel. But I can't see "Hello" in the ...
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45 views

What's the minimum hardware for CISCO IP phones?

I have a SOHO setup with about 8 computers/laptops/servers on a LAN and a regular ADSL internet connection over the phone line. There is no EPABX. Just a regular phone line (after the DSL splitter). ...
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30 views

VoIP call interruption with my internet

I Have 2 D link 2025u Dsl Routers with 6Mbps Download speed and 0.60 mbps upload speed and i have total 10 user to call over internet via skype and voip connect software, We facing problem with call ...
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1answer
73 views

HP Thin Client T410 Network Issues

This may be a pretty ambiguous problem but I'm going to try asking anyway; I'm at a loss for what to do. I work for a company that runs a mix of Windows desktops/laptops and Windows virtual machines. ...
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36 views

Program won't finish loading until I lock and unlock workstation

We have a unified communications app (Mitel MiCollab UCA 6.0) that freezes on the splash screen for only one computer. We have dozens of users with this app installed, on similar machines with the ...
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27 views

Setting up landline on mobile using Asterisk

I recently got a new broadband connection with a dlink DSL-2730U N150 wifi router. I also got a landline connection through the same line connected to my landline phone. I read at places the I can ...
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3answers
270 views

Jitsi and Telekom Germany - outgoing calls “Call failed - Not Acceptable”

I am trying to configure Jitsi to operate as a softphone for my Telekom Germany VoIP-connection. So, I went to the website of Telekom Germany, which provides the following details for connecting: ...
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1answer
56 views

Do FreePbx need VPN for connection?

I heard about that PBX (like freepbx, elastix, etc...) need a VPN to users connect to it. if is it true, why it needs? if so, how can I do not use it in the user client? any alternatives? i heard ...
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46 views

Asterisk server asks peer on other server to Authenticate

I am trying to have an SIP peer on one asterisk server call an SIP peer on another asterisk server. I have SRTP enabled between the two servers not the SIP clients. When I initiate the call, i.e SIP1 ...
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2answers
883 views

Failed to authenticate SIP peer

I am trying to connect an SIP peer using Zoiper to my asterisk server. The peer is a soft-phone on my server. I have the following config for the peer: [201] disallow=all allow=alaw ...
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1answer
42 views

What's Lax and Lax2 protocols?

Are LAX and LAX2 communication protocols like SIP? What are these? Some telephone systems support them beside SIP but I cannot find information on google
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56 views

Why do Ekiga touchtones only work with the RFC2833 setting?

I have Ekiga acting as a softphone for my VOIP account. I made a call to an automated switchboard which required me to "press 2 to continue". I attempted to press "2" on the keypad pane but the DTMF ...
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1answer
171 views

Does AT&T U-Verse phone service cause problems with modems?

I have landline phone service with ATT Uverse. My router is a 2wire, and when I go to the router homepage, I see something that says the VoIp service is either idle or active. I also have a modem in ...
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123 views

Is there an easy way to reduce background noise in skype (such as through a voice activation detection meter)?

Is such a thing built in to skype or has a program been made so that your mic only activates once the sensor detects past a certain threshold? I know it is common in almost every other VOIP service ...
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1answer
101 views

Connect LAN-device to iMac socket and have internet (through WiFi) on LAN-device

I have an iMac which has internet through WiFi. I also have a VOIP-phone with only a LAN socket (no WiFi adapter availalble). I would like to connect my VOIP-phone to the LAN outlet on my Imac, and ...
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179 views

How do I connect my D-Link DIR-605L wireless router to my TP-Link TL-SG2424P PoE switch?

We connect to the Internet via our D-Link DIR-605L wireless router. We just bought a TP-Link TL-SG2424P PoE switch to power our new VoIP phones and connect them together. (Our wireless router will ...