I need to connect a establish a "voice telephone line" between two server rooms. The rooms are underground, so I can't use mobiles/Walkie-talkies. There isn't a land line connecting the two. And I can't lay new phone cables. But there is an IP network.... What I need is the ability to setup some kind of minimal "SKYPE/VOIP/IP voice connection software" between the two sites. These server rooms aren't internet connected, so any products that require Internet servers wouldn't work. Does anyone know of any programs that I can install on a computer, or a couple of VOIP phones that'll work in a closed environment? Any help would be greatly appreciated.
How about a pigeon that can carry messages from one end to another. How about connecting two match boxes with a thread and talking at each end. No really on a serious matter, can't you install an antenna inbetween the room so you can use a walkietalkie?
No, these server rooms are several hundred meters apart (fibre), linked with an IP routed network. Also, the rooms are 2 floors below ground level with thick concrete walls. So far I'm inclined to go with the matchbox idea.
How about a telegraph system? Can you have some sort of VPN connection? Does the communication have to be voice or can it be txt ( chatting)?