VoIP as intercom

[ad5mb]

I'm trying to find a way to communicate over 802.11. No need to call out for a pizza. Just need to talk between two people, or send a message to a group; all within a non-routed network domain. The functionality of walky-talkies, no connection to PSTN.

Can't find any mention of this in all the VoIP, VoWLAN and QoS sites I've found. Can trhis be done?

[singha]

Yes you can. There are two ways you can achieve this. You can install Asterisk on a Linksys WRT54G. Any SIP phones whether wireless WiFI phones or wired phones or softphones installed on computers on the same subnet will be able to call each other.

There is also an easier way that does not require SIP sever/clients. I'm about to start setting up a system like this soon and will post here when I'm done with it. Basically, I'm building a standalone battery powered "connection station" with a high gain antenna which will allow all WiFi phones connected to it to communicate to each other. Check my post about the external antenna for a WiFi phone for a link to my site that has a lot of wireless VoIP hacks.

[nbronx]

can this be done just using wifi headset?
i know they are not out there yet but if they were
I have also been reading that voip has been done using zigbee
on a push to talk type network all headset would hear but only 1 can talk at a time using mac address and wpakey
looking at as many as 255 units (headsets) on 1 VWPAN

[Eezy]

can this be done just using wifi headset?
i know they are not out there yet but if they were
I have also been reading that voip has been done using zigbee
on a push to talk type network all headset would hear but only 1 can talk at a time using mac address and wpakey
looking at as many as 255 units (headsets) on 1 VWPAN


There's a wifi headset?

[John_in_NC]

If you get a pair of Grandstream BT100 voip phones $59 on ebay, set them to auto answer.
You can call one from the other, it will ring once then go to speaker phone.

Do NOT need an asterisk system if that is all you want it to do.

However, I do have a Trixbox system (asterisk engine) which allows me to call home, dial a secret extension and my wife doesn't even have to answer the phone cause it auto answers.
It is very cool