i`m trying to build a lab, Do you need any DSP`s for a Gatekeeper ?
If you're building a lab you may want to co-reside the gateway and the gatekeeper.
It makes looking at debugs a little tougher, but it's still possible.
The only devices that need DSPs are:
-Things that you want to register to CUCM/CME with transcoders or conference bridges (MTPs can be done in software)
-Things with PRI/FXO/CAS/other analog ports
GK just proxies the H323 requests, and never touches the media.
NO you do not need any DSPs for GK