Active ISDN Monitoring

Hi everybody!
There is an application that requires active monitoring of TDM channels of ISDN (call analysis and management+recording, including the ability to disconnect some of the calls). The input and output of the monitoring system are both E1-ISDN-PRI. One solution is a back-to-back implementation. Is there anyone who could elaborate more on possible solutions based on asterisk?


Sounds like a project Asterisk can handle. E1 interface cards to face to the PSTN and to your PBX, set the dial plan to ring channels on the PBX line when calls come in from the PSTN and likewise ring the PSTN when calls come in from the PBX. Asterisk can record calls that pass through it and you can disconnect & “spy” on channels as you need to.