We use ASC telecom for our recorders. They are very flexible and a lot cheaper than NICE or Verint. We use ours to record OpenScape Xpert turrets, IP phones, and SIP radios. They can do trunk recording as well- we just don't do that ourselves.
LoPath
Maintain HiPath 4000 V5 & V6, OpenScape Xpert V4, Xpressions, Contact Center