Landline to WLAN to Cordless?

I work for a non-VoIP company. We have a large warehouse that I need to roam around in and be able to make calls. What I would like to be able to do is unhook my office phone from the landline and plug the line into some kind of WiFi device. Then I would like to be able to have a phone that I could use like my office phone but use it over the WiFi network. It would be good if I could use it over multiple wireless routers since our warehouse is very large. When I use the phone I am in a relatively static position so it is also possible that the "mobile" phone could in fact be some type of cordless phone with a base connected to the nearest WiFi station. Quality of the phone call would be important and I would like to keep the project under $1000. Any help is appreciated.

Welcome to VoIP User Wombat. If I understand your requirement correctly, you could do this with an ATA (analogue telephone adaptor - a bridge between the PSTN and the VoIP World) plugged into the WiFi network and a WiFi handset, something like:-

PSTN line -> ATA -> WiFi -> WiFi VoIP handset

On the ATA side, there's a bunch of them here:-

http://www.voip-info.org/wiki/view/Anal ... e+Adapters

... and WiFi VoIP handsets:-

http://www.voip-info.org/wiki-VOIP+Phones (scroll down to the WiFi phones section).

There are also a few of these in our reviews section (link in the menu to your left).

Quote:

I would like to keep the project under $1000.

I don't see any problem with that, in fact it wouldn't surprise me if you managed to do it under $500.

Bear in mind that battery life on WiFi handsets isn't as good as DECT. If you have multiple WiFi access points in the building, range should be pretty decent but bear in mind the device won't "hand over" like cellular does - the phone will need to register at each WiFi access point you connect to, which would be multiple if you're moving about. If a call comes in while you're in between access points/registration, you'll miss the call.

What's the reason for chosing WiFi/VoIP over DECT by the way?

Dean

So I can just take an ATA device, such as this Cisco one:

http://www.cisco.com/en/US/prod/collate ... 7cd72.html

and plug my existing phone line into it and connect it to a wireless router? The diagram on the website shows the whole process working the other way, where I connect my phone to the ATA device and use it to make calls through the internet. I'm trying to make calls using my LAN and transmit them over my normal phone line. If the ATA will work for this then that is great.

Then I can have as many routers as I need to cover my building and as long as they are networked together I can talk wherever I get a signal?

Can I use a phone that does not have a base like this one:
http://accessories.skype.com/store/skyp ... D.80816800

If I do need a phone with a base, are there cordless phones that have WiFi bases so that I do not actually have to connect the base to a router? Again, thanks for your help.

Would this work for this application?

http://www.voip-info.org/wiki/view/D-Link+DPH-540

Or this one?
http://www.unex.com.tw/product/wgs-100