3CX Phone System 12.5 Click-to-Call

3CX Phone System 12.5 Leverages WebRTC Technology for Website Click-to-Call & Video Calling

January 15, 2015 - 11:04am

LONDON UK 15 JANUARY 2015 - 3CX, developer of the award-winning Windows VoIP PBX 3CX Phone System, today announced the launch of 3CX Phone System 12.5. The latest version of 3CX Phone System leverages WebRTC technology to offer click-to-call and video

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Brush up your Knowledge of 3CX Phone System for 2015 with our New Webcasts

January 09, 2015 - 06:44pm

Brush up your knowledge of 3CX Phone System for 2015 with our new series of webcasts. These free training sessions are hosted by 3CX and will cover a range of topics including: firewalls and ports, and outbound and inbound rules. To join a webcast click

3CX PBX • View topic - STUN servers
3CX PBX • View topic - STUN servers

STUN servers

Forum for the 3CXPhone for Windows client User to User - Answers are provided by the community. 3CX does NOT provide technical support via this forum.

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STUN servers

Postby Vali_3CX » Tue Nov 03, 2009 10:55 pm

Hi, all

Since the speed of connection to a STUN server has a significant role when establishing a call over internet in case of a direct, not tunneled connection, there is a short list with few tested STUN servers. Average time listed is measured from Cyprus.

As an advice, to decide which of them is most suitable for you, perform the same measurement, by ping-ing from the machine where 3CXPhone (or 3CX Phone System, if you want to use there) is running, then use the fastest one. Next release of 3CXPhone, quite heavily revised, has a debug indicator about call establishing time and differences between various STUN servers could be easily seen.

STUN servers "seen" from Cyprus, from fastest to slowest:

stun.voipbuster.com
avg: 142 ms

stun.internetcalls.com
avg: 142 ms

stun.sipgate.net
avg: 149 ms

stun.voipcheap.com
avg: 180 ms

stun.ideasip.com
avg: 216 ms

stun.counterpath.com
avg: 222 ms

numb.viagenie.ca
avg: 222 ms

stun01.sipphone.com
avg: 282 ms

stun.3cx.com
avg: 287 ms
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Vali_3CX
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Location: Nicosia, Cyprus

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