atcomsystems.ca/forum Forums Other TDM Phone Systems ESI Telephones & Systems Cordless 802.11B/G Phone

I am looking into an ESI Communication server for our company, and am wondering about cordless 802.11G or B phones. I see that ESI advertises an IP cordless phone, but it communicates over 900MHz from the phone to the base, and then IP from base to the phone server.

I need phones that we can roam around our facility with, using our existing 802.11G infrastructure. Is this possible with anything from ESI, and if not, can you use a 3rd party 802.11G SIP phone?

Thanks for any input!

You can plug almost any type of cordless phone in the analog ports of an ESI system(IF so equipped)

ESI also has 2 Digital Cordless models.

Yes, you may use a SIP Cordless Phone. You will need an IVC card and SIP licensing.

Can you use pretty much any SIP compliant phone (Cisco, Linksys, etc), or are there any certain ones that I should look for? Thanks for the help.

I've used a Hitachi Wireless IP 5000 SIP phone. I know ESI and SIP can be picky. Some phones are very difficult to get working.

My bet is you will make out much better with an analog cordless phone or cordless headset. We have had great luck with the Plantronics Calisto wireless headset.

A standard cordless phone will not work in my situation. We have 3 buildings (Main office, shop, and 2nd office). All 3 are close by, and have existing 802.11b/g wifi covering the entire area. I want our roaming employees to be able to carry their phone between buildings and still make / receive calls.

Is this possible with ESI? I am looking into an NEC SV8100 system, and from what I understand, they have phones that will accomplish this.

I know this is a different question from the original thread topic, but does anyone have any experience with the NEC SV8100 system?

There are some very knowledgeable techs in the NEC forum that could answer that better than I.

As far as blending non system phones with designed system phones my experience is that it never works out according to plan.

What is the range from a central building to the furthest location in another building?

The reason I ask is one day I forgot I was wearing my ESI cordless and it rang almost 3 blocks down the road.

That was my fear. I really don't want to use any non ESI phones with an ESI phone switch. Thanks for all of your input!

How many phones are you looking to deploy?

We have an IP Dect system that works great with ESI systems.

I have it running in our office with no issues.