Session Initiation Protocol, a signalling protocol that is commonly used in Open Source VOIP solutions.

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Jitsi won't start under ubuntu

I installed jitsi, both from the official repos and a direct download from the webpage. When I try to run it I get the error message: SIP Communicator is already running and will handle your ...
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0answers
31 views

Good option for a command line SIP client?

I am looking for a simple command line based SIP client that can do the following: Can Register to a Elastix PBX Auto answer calls Play a ring sound Dial a extension when a key is pressed OR be ...
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0answers
43 views

VPN routing table for SIP clients

I have a small problem with Linux routing using VPN (ppp0 interface). I use VPN to connect to my office from home. This works just fine with the following exception. When I try to connect to asterisk ...
2
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1answer
87 views

How to set up VOIP in ubuntu [duplicate]

I am running a small business unit on agency recruitments. Need to know about setting up a VOIP service to call USA/Canada.. We have around 20 phones on line and we operate from bangalore. What ...
0
votes
3answers
119 views

Is a Skype account needed to talk via SIP?

I want to be able to use the voice chat abilities of Skype, but I'd rather not sign up for another online service, privacy and all that. So, I have been looking around and came across SIP, and would ...
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0answers
87 views

Bad SIP URI in To header field

Hello we are creating Asterisk<->Lync trunk. The Asterisk is under providers control. I am in charge of Lync. I'm slightly familiar with Asterisk. We created trunk. Everything was fine until ...
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0answers
71 views

Port forwarding as SIP tunnel

I have an ubuntu machine that connected to 2 networks. 192.168.1.0/24 and 192.168.2.0/24 My machine has two IP addresses -- 192.168.1.50 and 192.168.2.50 I have SIP server on 192.168.2.250 but ...
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106 views

Express Talk SIP software issues

I am using Ubuntu 12.04 Could that be because I am not in North America(I live in Israel)? I do not use any proxy. I also tried disabling the firewall. http://imgur.com/KaWDm58 On ...
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1answer
315 views

Any good foip (T.38) clients for ubuntu?

At our office we have an asterisk server with T.38 set up on it. Right now we are using a fax machine with an ATA and it works good, but were hoping to go paperless. Does anyone know of any good FoIP ...
5
votes
1answer
873 views

SIP client in Ubuntu Touch?

Newb here. I am interested in using Ubuntu Phone as a SIP client. I would really like to hookup with whoever is doing the dialer (or phone app or whatever it is called) in Ubuntu Phone so that VOIP ...
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3answers
5k views

Ubuntu 12.10 - How to get sip phone Twinkle latest version working using deb or already existing package from any repository?

In Fedora, ArchLinux Twinkle works without any problem just using there default package installer. But since in Ubuntu 12.10 there is not anymore this package available using apt-get install twinkle ...
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1answer
216 views

SIP Phones unreliable past 12.04 - Empathy additional features?

I am currently running Empathy SIP, which works "ok" but it's definitely not up to the same standard that QuteCom is on Windows. QuteCom on Ubuntu is unstable, but yet still in the stable repository. ...
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1answer
173 views

How to disable sip auto answer

I just noticed that my SIP (Session Initiation Protocol) client automatically answer ALL incoming calls. Not good. I'm using telepathy-sofiasip with Empathy. I wonder how I can disable the ...
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votes
3answers
3k views

SIP clients not working on Ubuntu 12.04

I am trying to find a SIP client that works on Ubuntu 12.04. I have an account on voipdiscount (www.voipdiscount.com) and 12voip (www.12voip.com) Earlier on Ubuntu 11.10, I was able to use SIP ...
8
votes
3answers
16k views

Lync (formerly Office Communicator) with pidgin-sipe => Read Error

I always could connect to my companys Microsoft Lync network which is based on SIP. There is an addon for Pidgin called pidgin-sipe. Everything worked fine unless the company changed something weird. ...
1
vote
1answer
441 views

What are the best tool to generate an RTP session?

I want to generate some RTP traffic between Windows and Ubuntu and capture the packets using Wireshark. This is for study purpose. What tools can I use for generating RTP traffic. Whatever I tried ...
0
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1answer
846 views

Configuring 12voip with a sip softphone in Ubuntu

I want to change my work PC to Ubuntu but one thing is in my way... We use 12voip since we didn't find lower calling rates in Europe. The thing is 12voip doesn't have a Linux program :-(. I tried to ...
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0answers
161 views

How can I tell if ZRTP is enabled in a Twinkle SIP call? [closed]

I recently attended a talk about GNU Telephony. I was informed that Twinkle supports ZRTP for encrypted SIP calls. I went into Edit > User Profile > Security and made sure that ZRTP was enables and ...
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2answers
4k views

How do I receive incoming Google Voice calls using Empathy?

I have a google voice number so I can receive phone calls dialed to an actual phone number when I'm logged into gmail (via the gtalk widget sidebar). I see I can use Empathy to make voice calls with ...
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votes
1answer
544 views

Empathy not able to sign into a SIP Account

I am running a Ubuntu 10.04 and trying to configure three SIP accounts on my machine. Following is the status of 3 accounts iptel.org - I can sign in - it shows I am online, but I am unable to make ...
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1answer
3k views

Sip-client which has command-line interface

Is there any SIP-client for Ubuntu which has command-line interface? So, for example, I can make calls without using any GUI, just sending commands to the application.
2
votes
1answer
976 views

Call transfer/forward with Ekiga/Jitsi?

Im trying to configure my Lucid 10.04.03 in order to work with Sip phones; Actually, Ekiga and Jitsi* works fine, except for the call transfer/forward, that is very important for me. With Ekiga, i ...
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votes
0answers
230 views

Have either Empathy or Ekiga SIP clients use IPv6 instead of messing with NAT? [closed]

How can I get either Empathy or Ekiga to work over IPv6 so I can avoid all the complexity of dealing with NAT?
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3answers
277 views

FOSS IPv6 Capable SIP client

I would like to try SIP. However, I am having troubles with ekiga and upon looking them up it sounds like it is a NAT problem. Since I have control of both clients, I figured IPv6 would be much easier ...
5
votes
4answers
1k views

Looking for a Commercial Grade SIP Softphone

I use a commercial Asterisk-based SIP provider for my business. I'm going through the process of acquiring hearing aids, and it may be smartest for me to steam telephone audio from my provider ...