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Zoiper Free IAX and SIP softphone 2.15
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File Size: 2.8 Mb

Zoiper Free IAX and SIP softphone 2.15

Language:English, Dutch, French, German, Portuguese, Russian, Spanish
Platform:Vista, Windows, Linux, MAC
Requirements:Pentium II 300, 256 MB RAM, Sound card: 16 bit
Install:Install and Uninstall
Recommend Zoiper Free IAX and SIP softphone Suggest to Friend

Publisher's Description:

Zoiper Free IAX and SIP softphone - Zoiper Free is a IAX and SIP softphone compatible with the Asterisk platform as any other SIP or IAX capable system. Zoiper Free Edition features include:

* SIP + IAX/IAX 2 protocols

* STUN support

* STUN server per account

* T.38 fax support

* Echo cancellation

* DTMF tones sending

* DSCP support

* Support for multiple audio devices

* Automatic user registration

* Call transfer

* Hold function

* Codecs: GSM, ulaw, alaw, speex, ilbc

* Adaptive Jitter Buffer

* Call history

* Address book

* Quick dial panel

* Optional Automatic pop-up window for incoming call

* Always on top

* Call logs

* Voice mail message information

* Account password encryption

* Upgrade notification

* Adjustment of audio device

* Codecs priority

* Portable storage compatibility

* Multilanguage support

Re-branded Zoiper:

* Basic: colours, name and logo of your choice;

* Re-branding with additional development: e.g. changing the language; adding, disabling, removing of menus/options/buttons; adding functionalities;

* Complete: you can go for complete change of the interface and functionality.

Info about Zoiper OEM can be obtained at

Zoiper Biz, the advanced version of Zoiper Free, gives more features:

* Native conferencing


* TLS/TCP support with SIP

* TLS with SRTP support

* g.729 (optional)

* Mail program plug-in: Outlook/Thunderbird integration

* Zoiprint printer river and interface

* Callto URL protocol

* Automatic provisioning (XML)

* Call forward

* Auto answer

* Incoming URL handling

* Automatic opening of incoming URL

* Access voice mail message with one button

* Attended transfer (native)

* Call recording (Single file recordings)

* Command line dialing

* Custom ring tones

* Open URL on different call events

* Call history

* Call transfer

* Unlimited number of accounts

* Changeable number of lines (up to 6)

* More!

Both Zoiper editions may be customized to unique customer requirements.

List of Changes:

Version 2.15 from 2008-06-17


ZOIPER Free IAX / IAX2 and SIP softphone

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File Size: 2.8 Mb

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Latest User Reviews:

Michael 2010-11-07 01:34:38 #
Version: 2.15


I just cannot get it to register or make calls.

Windows 7 Ultimate


Sailing 2010-08-03 04:57:25 #
Version: 2.15

Tried this on a few computers - very easy to install and use. Works reliably too. The multi-language feature is useful.


Vadim Mikhnevych 2010-05-31 07:35:09 #
Version: 2.15

The reason why I installed Zoiper was it's ability to send faxes. Very convenient, comparing to t38modem + eFax solution I tried to use before. But, sadly, both of them failed to establish a T.38 connection to Asterisk, though Zoiper was one step closer - in SDP debug log I could see, at least, T.38-related headers. But no idea, why it couldn't connect.
Exact error is:
ERROR[9809]: res_fax.c:696 generic_fax_exec: channel 'SIP/2379-00000016' is in an unsupported T.38 negotiation state, cannot continue.
Here 2379 is a peer where Zoiper is registered.

Houtleem 2010-05-24 06:20:42 #
Version: 2.15



Wesswires 2009-10-04 17:52:52 #
Version: 2.15

This is a nice softphone that is functional but doesn't take up all the desktop. It had NO issues starting up and registering my line (tested with -Wess

Juancceronm 2009-09-19 08:57:47 #
Version: 2.15

very good program is better than x-lite

Ttbeverley 2009-08-06 02:09:02 #
Version: 2.15

not bad, does as it says. Not many free sip softphones for mac, but this one i would be happy to pay for (which you can)

Colinf 2009-07-07 15:42:13 #
Version: 2.15

A great SIP softphone. Easy to use, quick to download and set up. Thank you Attractel.

M Bundock 2009-05-16 16:29:19 #
Version: 2.15

Nice - it works!

Info 2009-02-27 01:48:53 #
Version: 2.15

zoiper schedule

It is possible to automate faxing zoiper?
Let me explain, you can leave a file in a series of faxes and that will put the zoiper without user intervention?.
It is possible to connect with zoiper any DLL using Visual Basic?

Colin 2009-02-12 11:59:08 #
Version: 2.15

Good but problems with USB Phone

This works well, and I like the option to have two SIP registrations active at once.

The one problem I am having is that I can't get it to work with a USB phone that I have. It selects it ok, but no sound and the microphone doesn't work either. The USB phone works fine with Skype.


Qarchive 2008-12-23 04:21:20 #
Version: 2.15

Failed on my pc with my sip account

I tried it but uninstalled it shortly after as it did not do immediately what I wanted.

Suhelpharmacist 2008-10-29 22:21:20 #
Version: 2.15

How to use it.

Hello I found it great program but I'm not able to use it it was showing message service not available. I wanted to know that it's like icall program? Or we should have telephone line to use this program.
Waiting for your prompt reply.

Rnbman 2008-10-23 21:04:20 #
Version: 2.15

Zoiper SIP

Using zoiper free for sip calls out only. Working fine and clear.

Sm6ont 2008-10-09 14:13:03 #
Version: 2.15

Zopier in our test implementation

Very easy to install both in Windows and Linux. Easy to hook up with our IAX. We have not had time to test all features but we were running after 15 minutes....Good work guys!

Dalderton41 2008-09-11 03:25:11 #
Version: 2.15

Linux version confusion

I downloaded the softphone and it appeared as a .exe file which my system LINUX PUPPY 4.01 did not recognise.It seemed like a windows file and as such was no use.
Some explanation would be useful as would be a version e,g tar.gz linux. I have had no trouble downloading X-Lite and SJphone softphones however they do not incorporate the G729 codec which I would like as I do not have access to broadband. I assume that your softphone has the codec in the linux version.
Regards Dennis ALderton

Howard 2008-08-26 09:53:35 #
Version: 2.15

excellent and light wieght

excellent and light wieght starts and connects in a flash

Herman.van.Heesch 2008-08-13 03:41:20 #
Version: 2.15

collaboratin client icw MS OCS 2007

Main focus wat to check if this product could work with Microsoft OCS 2007. Seems not for now. Any ideas if this might happen in the near future?

Friedhelm.kueck 2008-08-06 02:44:34 #
Version: 2.15

Perfect SIP phone for your USB stick

I downloaded and installed the application on my USB stick and it works great through VPN with my Asterisk server at home. Therefore I can strongly recomend the application.

The only caviat I see is the missing "voicemail notification" in the free version. If this feature would be included inthe free version, I would give the ratin excellent. Without this feature, having in mind the portability of the application, it is a "very good" tool.

Regards from Germany!

Mrk3271-info 2008-05-07 21:47:08 #
Version: 2.15

Use with Asterisk

I had been using the X-Ten soft phone with my Asterisk server, but I was getting choppy sound so I decided to look for an other soft phone. (My Linksys ATA worked fine)
I thought this product might resolve my choppy sound problem, but unfortunate it did not resolve my problem either in SIP or AIX mode.

I like some of the features though, having multipull sip or AIX accounts is very handy.

bdlc 2008-03-14 10:05:24 #
Version: 2.15

It is not friendly used as adore softphone.

I downloaded and tried to use zoiper softphone but very complicated to use and deleted, I downloaded adoresoftphone and it worked for me fine and freindly, hope you will develope zoiper softophone for better and best.

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File Size: 2.8 Mb