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Wideband Voice And Free World Dialup

For the past few weeks I’ve been hunting for a soft phone with specific wideband voice capabilities. I’ve found a couple but there arises complications.

Wideband-capable hard phones usually support G.722, G.722.1 or G.722.2 (aka AMR-WB) codecs. There are other codecs out there that support wideband voice coding. Speex is the one most often cited. However, Speex support in hardware is extremely limited. So Speex implemented in a soft phone is not going to help me evaluate interoperability with hard phones.

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snom m3 Phone Review: SIP, DECT and Flexible

This review was originally published Feb 26, 2008 at www.smallnetbuilder.com

At a Glance
Product snom m3 IP DECT phone
Summary Full-featured business-class cordless IP phone system
Pros • Easy setup
• Very good call quality
• Good cordless range
• Excellent battery life
• Multiple simultaneous SIP registrations
Cons • Contact list not remote provisioned
• No use of SIP URIs
• No dedicated function keys
• No support for G.722
• Weak speakerphone

I have worked from a home office for over ten years. Just over two years ago, I transitioned both my home and office to a completely VoIP-based phone system. My goal was to improve my ability to stay connected while reducing my monthly operating costs. I carefully selected high quality, business-class SIP desk phones with a variety of features to make running a small office easier.

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