sip

How to enable Video Support on Positron Telecom Appliance or Blade

Support for video codecs H263 or H264 is not enabled by default on the Positron Telecom range of business phone systems. This will need to be enabled if you intend to use the PBX’s with for instance video phones or door entry phones. A step by step guide to enabling this feature is detailed below. […]

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Atcom AT610 SIP/IAX IP Phone

We often get asked how to configure the AT-610 to connect to an asterisk server using IAX protocol. It is important to note that the AT-610 has two seperate firmware images, one for SIP and one for IAX. By default the AT610 ships with SIP Protocol firmware and therefore if you need IAX functionality, please […]

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Skype Sip Service Addresses

I spent ages trying to find ip addresses for Skype’s servers for their Sip gateway service. Fortunately their technical support team were very helpful and provided the ones below. Might prove useful to those of you wanting to tighten your firewall security. 63.209.144.201 204.9.161.164 193.120.218.68 80.252.85.76 78.141.179.70 Besides the 5060 port that needs to be […]

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V60 Firmware released for Yealink Phones

V60 Firmware for Yealink Phones SIP-T28/T26/T22/T20/T12 is available. Please see release notes below: Introduction 1. Firmware Version: V60 2. Product Name: SIP-T28/T26/T22/T20/T12 3. Release Date: January 07, 2011 New Features 1. Added IPV6 support. 2. Supported Action URL/URI.3. Added ACD function.4. Added LLDP support. 5. Supported PushXML. 6. Enable Broadsoft ACD synchronization. 7. Supported Broadsoft […]

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Securing Your PBX System against Unauthorised Access

The number of attacks on sip based voip systems appears to be increasing at an alarming rate over the past few months and therefore it is essential that your pbx environment is secured. Some essentials actions that you must take include: Ensure a firewall is in place to protect your internal Network from the internet […]

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Atcom AT-610 IP Phone in Stock

 Our first batch of AT-610 have arrived in stock today the 11th January 2010. They have shipped with SIP firmware installed but I have been informed by Atcom that the SIP/IAX2 firmware is close to release for this model.

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IPChitChat VoIP Service Online

We have finally integrated our VoIP Service into the website so existing customers can now top up credit online and add additional services as required. New customers have the ability to create new accounts. We have also released a draft document detailing the  online service which also contains information on configuring the SIP or IAX […]

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AG188n to Replace AG188 SIP/IAX ATA

We only have a limited amount of the Atcom ag188 in stock and will be moving to the newer AG188n model in June. The AG188n is pretty much the same device and still supports both SIP and IAX protocols. The major change is the better styled casing as can be seen from the image below […]

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Atcom AT620 – Finally an IAX phone that supports an headset!

Finally an iax phone with support for a headset! We so often get asked if we supply such a model. Soon we will be able to say yes. The AT620 from Atcom is currently undergoing FCC/CE testing and should be with us in the next couple of months. Key features Broadcom chip Two Sip accounts […]

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Powerful and energy efficient Asterisk IP-PBX Appliance

Atcom’s ultra compact IP0x range of asterisk VoIP appliances are the perfect business phone system for the SMB market. Designed for environments with less than 30 extensions and capable of supporting around 15 concurrent calls, the IP0x range are silent in operation with no moving parts, making them ideal for busy office environments where space […]

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