DECT Cordless or WiFi Cordless IP Phone

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alisam

830 posts

Ultimate Geek

#319526 3-May-2025 08:06

We have a Spark landline. In the house are 2 x RJ12 (I assume) faceplates. We have a Base Station into one faceplate and a satellite phone just into power. It works well, but soon, neither of the faceplates will be convenient locations in the house.

I have 300/100 fibre to a Grandstream GWN7062 Router in the garage. This provides wifi for the downstairs, and upstairs I have a POE wired GWN7665. The house is 256 sq metres and wifi appears to reach all corners of the house.

Looking at Grandstream IP phones, I an unclear whether a DECT Cordless System or a WiFi Cordless System would be best.

I can understand Wi-Fi, but for a DECT system, there would be a base station in the garage and then 2 x Cordless phones (downstairs and upstairs) would have to connect to the base station. Presumably, there is a chance I find out that the phone and the base station are too far away from each other. Is that a realistic assumption?

Could you comment and/or make a recommendation?

PC: Dell Inspiron 16 5640 (Windows 11 Home), Dell Inspiron 7591 2n1 (Windows 11 Pro), HP ProBook 470G1 (Windows 10 Pro), Intel NUC7I5BNH (Zorin)
Net: Grandstream 1 x GWN7062 Router, 1 x GWN7665 Access Point
Storage: Synology DS216play NAS, 2 x 6TB
Media: 3 x Amazon FireTV. Echo, Dot, Spot
TV: 2 x Samsung H6400 55" LED TV, Panasonic TH-P50G10Z 50" Plasma TV
Mobile: Samsung Galaxy A52 5G
Wearable: Gear S3 Frontier

nova

250 posts

Master Geek

Trusted

#3370122 3-May-2025 08:44

If you go with Wi-Fi you might need to port your spark line to a VOIP provider such as hero.co.nz. Presumably with your current setup the phone lines plug into your ONT / Router. We use DECT phones (Yealink) and we have no problems with coverage in a two story house, the DECT signal has longer range than Wi-Fi. But if you went with Wi-Fi it would be a simpler setup and you already know that you have coverage, the only thing to watch for is roaming between floors. You might get a slight disruption as the phone switches over if you're walking around the house. But the first thing to figure out is what changes you would need to make to get a Wi-Fi phone working, I think switching away from Spark for the landline might be necessary. You could keep the same number and still use Spark for broadband, but you need to be a bit careful with e porting request to make sure they don't disconnect the broadband as well.

SirHumphreyAppleby

2849 posts

Uber Geek

#3370128 3-May-2025 09:14

I recommend using DECT. Wi-Fi uses more power and may have issue with hand-over between access points.

I have used a Grandstream DP752 and DP722 handsets. They have a few quirks, but the setup has performed reliably for several years.

mdooher

Hmm, what to write...
1425 posts

Uber Geek

ID Verified

Trusted

Lifetime subscriber

#3370143 3-May-2025 09:38

The Wi-Fi ones I have tried (Grandstream, different versions) have had no end of trouble.. everything from cooking batteries to just loosing connection, crashing or not ringing etc. The DECT ones are a lot more stable.

Matthew