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.

Filter by
Sorted by
Tagged with
0 votes
1 answer
607 views

How to make international phone calls from my computer' through my SIP server?

I'm currently working for a scientific company, and I'm the only programmer here, and the company wants me to use one of their servers to setup a SIP server, and somehow be able to make calls to ...
Igor Sílva's user avatar
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 ...
aochagavia's user avatar
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. ...
Kriegalex's user avatar
  • 111
0 votes
1 answer
166 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]. ...
Ωmega Δ's user avatar
0 votes
5 answers
401 views

ISP blocking VoIP - Morocco

Moroccan ISP's have blocked VOIP services since yesterday.. and we are looking for a way to counter it, even if we have to use a paid service. We'd like to get around this block - Could I use a paid ...
Omar BISTAMI's user avatar
0 votes
1 answer
47 views

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. ...
brent's user avatar
  • 29
0 votes
1 answer
501 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 ...
YetAnotherRandomUser's user avatar
2 votes
1 answer
434 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 & ...
brent's user avatar
  • 29
9 votes
1 answer
4k views

linphone: remove/hide "default identity"

Linphone 3.6.1 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 ...
cweiske's user avatar
  • 1,977
1 vote
1 answer
2k 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 ...
ziggurism's user avatar
  • 133
1 vote
1 answer
4k 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, ...
SPRBRN's user avatar
  • 7,712
0 votes
0 answers
116 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 ...
Tyler Durden's user avatar
  • 6,121
0 votes
1 answer
547 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 ...
Daniel van Sid's user avatar
1 vote
1 answer
45 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 ...
user3293133's user avatar
0 votes
1 answer
274 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, ...
bebbi's user avatar
  • 101
0 votes
0 answers
2k 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 ...
tickwave's user avatar
  • 277
0 votes
2 answers
457 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 ...
Vic's user avatar
  • 49
0 votes
0 answers
58 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 ...
redkha vindo's user avatar
-1 votes
1 answer
161 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 ...
mrblint's user avatar
0 votes
1 answer
1k 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 v1.10.8, ...
user2818782's user avatar
0 votes
1 answer
86 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 ...
Bobby Strickland's user avatar
1 vote
2 answers
3k 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. ...
Jamil Farooq's user avatar
2 votes
2 answers
6k 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 ...
Raghav's user avatar
  • 21
3 votes
2 answers
2k 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 ...
Nasser's user avatar
  • 33
0 votes
2 answers
4k 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 ...
Vic's user avatar
  • 49
1 vote
2 answers
195 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 ...
ecabuk's user avatar
  • 351
0 votes
2 answers
152 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 ...
Account Unknown's user avatar
0 votes
1 answer
363 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 ...
Yeona Lee's user avatar
0 votes
1 answer
646 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.
Account Unknown's user avatar
3 votes
2 answers
6k 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 ...
Account Unknown's user avatar
1 vote
2 answers
7k 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 ...
Account Unknown's user avatar
1 vote
1 answer
2k 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 ...
Paul Rougieux's user avatar
0 votes
1 answer
953 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). I'...
Navigator's user avatar
  • 149
0 votes
0 answers
70 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 ...
Yogesh Meher's user avatar
0 votes
1 answer
2k 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. ...
nightsurfer's user avatar
1 vote
3 answers
3k 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: ...
randers's user avatar
  • 477
0 votes
1 answer
222 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 ...
DiogoSaraiva's user avatar
0 votes
2 answers
24k 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 host=192.168.1....
dylan7's user avatar
  • 231
0 votes
1 answer
119 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
Rostamiani's user avatar
2 votes
2 answers
515 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 ...
Tom Ellis's user avatar
  • 135
1 vote
1 answer
911 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 ...
Janus Dunbar's user avatar
1 vote
1 answer
526 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 ...
Paul Verschoor's user avatar
0 votes
1 answer
219 views

server with multi purpose possible?

I would like to have the following 3 uses available to me. Accessing my files within and outside my network Game servers occasionally; Minecraft or Gmod (as example) Teamspeak 3 Is it possible to ...
Rien's user avatar
  • 113
2 votes
1 answer
1k views

internet traffic slow through switch; VOIP issues too

There's already a post about this, but the solution to that one didn't work for me, so here's my version: We have Cox cable internet, 100mbps | We have a Sonicwall TZ 215w | We have a netgear L2 ...
Uncle Frank's user avatar
0 votes
1 answer
2k views

No audio after SIP reinvite

I am trying to get a Gigaset C470 IP to work on my Internet connection. I have figured out the correct configuration for the device and my router (a pfSense sitting between the DSL modem and the LAN) ...
user149408's user avatar
  • 1,100
2 votes
1 answer
2k views

Bluetooth headset does not switch to VoIP

I ran into a problem when using my Bluetooth headphones on Windows 7. They support both the A2DP and the Hands-free profile, however it seems that only one of them can be active at a time. On my ...
Radovan's user avatar
  • 21
3 votes
0 answers
170 views

Ekiga softphone shows as "registered" -- but is it actually?

Is Ekiga actually registered? How would I know? I think Ekiga connects, or at least it says "registered": But, when I exit Ekiga, and use SFLphone, it fails to register: While sipsak shows a 200 OK ...
Thufir's user avatar
  • 1,610
-1 votes
1 answer
720 views

topology for an unmanaged switch (firewall)

I'm considering an unmanaged switch. My understanding is that many of these devices explicitly lack a firewall. In that case, what do you use as a firewall? I suppose one option would be to use a ...
Thufir's user avatar
  • 1,610
1 vote
0 answers
859 views

Error: "Channel not in Stasis application" when adding channel to a bridge

I'm working with Asterisk ARI. When I create channels via ARI, I specify application name and I can add those channels to a bridge with no problem. But when I use other client (like Zoiper) to make ...
Nikola.Lukovic's user avatar
0 votes
1 answer
212 views

VoIP Phone Reboot Leads to Internet Access? [closed]

So this isn't really an issue about not having access or anything but rather as to why this issue was resolved with the method I used. So in the morning, I tried to connect to the internet but I ...
shade917's user avatar

1 2
3
4 5
8