alicic, sorry, but you're wrong. PBX has built-in possibility to record calls, but for now it could only be triggered by Snom phones, because they have easy to use mechnism for that - SIP INFO with Record header. Later, we're going to implement DTMF-triggered recording (use of dial codes during a call), but before we need to decide how to work with all types of DTMF delivery. You see, PBX couldn't intercept DTMF in RTP (inband or out-of-band) if a call is direct (Media Server is not involved). So we can easily collect DTMF in SIP INFO, but for now we can not to require SIP INFO-only mechanism of delivery, because then we won't be able to support IVRs because they can use RTP DTMFs only. So we have kind of dilemma here which we're trying to solve.