A system for recording telephone conversations over an analog line?

Question

Telephony

Good afternoon, cheaters!
Given:
2 offices
2 dispatchers on landline phones
Task:
Recording telephone conversations on an analog line
Conditions:
All-in-one solution (unpacked, plugged in, set up and forgot) The
simplest solution
With "foolproof"
No glitches
Budget for two set: 100 tr.
Please advise a proven solution
Update
Under my parameters, the SPRUT NR-1 is the most suitable

Answer 1

SpRecord, the only thing, it stores records on a computer, so it's not completely "all in one", but it's a very common thing.

Answer 2

And if you embed a simple circuit of a pair of radio components into an analog line, a linear input of a conventional sound card + a computer and software that recognizes the beginning of a conversation and a number ... is such a solution really going to cost about 100 thousand rubles?

Answer 3

www.artlebedev.ru/everything/paliha/teleport2/
If there is only one line. It costs less than 5,000.

Answer 4

The AudioSpy multi-channel audio recording system will
save 90% of the above budget if operators have ordinary office computers. External adapters of various types are connected either to USB, or at least to integrated PC audio cards. You do not need to disassemble the computer and install PCI cards.
- "protection from a fool" - a two-level administration system and a mode of operation hidden from the user (also by the NT service). But there is a main disadvantage - the recording will stop when the computer is turned off.
- "No glitches" - the software has been around for a long time. And in the processes there is another exe-shnik that monitors the work of the main program and, in a critical situation, restarts it. And manually removing the program from processes is difficult without knowing this nuance.