“NO LAN CABLE” error on Grandstream? Try this!

(NOTE: If you’re impatient, there’s a TL;DR at the bottom of the post, but it may not make much sense to you without the rest of the information in the post. Skip there at your own risk…)

A bit of backstory…

For many years, I’ve used the venerable Cisco SPA508G IP phone as my daily driver on both my home and office desks. Throw in a Cisco SPA500DS digital sidecar, and it’s a golden setup. Plenty of keys for speed dialing, other extensions, etc. and all of your sidecar labeling is controlled from the provisioning server — no more fooling with paper inserts!

As such, I’ve always used that setup as my benchmark when evaluating new IP phones for possible use with my customers. The Cisco equipment is solidly built, reliable, sounds great, and is fairly easy to work with.

A year or so back, I started evaluating more “modern” phones with features my customers would like to see, such as color screens, gigabit Ethernet (for passthrough to computers, etc.) I’ve tried phones by Sangoma, Yealink, and probably a few other vendors. The audio quality on the Sangoma, frankly, sucked. I tried to work with them on getting that fixed, to no avail. I can’t remember what happened with the Yealink or others — but in the end, the Cisco setup always ended up on my desk.

Enter Grandstream…

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