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Tag: UCM

IT Administration July 9, 2024

Wave for Windows Desktop Requires H.264 to Receive Voice Calls

It’s not uncommon when debugging VoIP phone systems to simplify as much as possible to eliminate possible incompatibilities, as well as to reduce TCP packet size. Especially having too many …

IT Administration October 5, 2023

AT&T Flexible Reach with a Grandstream UCM

I blogged in 2019 about connecting 3CX running on Windows with an AT&T Flexible Reach SIP gateway. Now I’m moving that customer to a Grandstream UCM6301, currently running firmware 1.0.21.9, …

IT Administration September 27, 2016

Set Up TLS on a Grandstream UCM Device Using a Public SSL Certificate

I wanted to get TLS connections working between remote Grandstream phones connected over the Internet to a Grandstream UCM6102 PBX. This location already has an SSL certificate for its web …

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Welcome to MCB Systems!

MCB Systems is a San Diego-based provider of software and information technology services.

Our software products include the 3CX Phone System and MCB GoldLink to 3CX.

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