Take mercy on me - I'm a newbie w/ Asterisks... Here's what I'm trying to do - and please someone let me know if this can be done... We have a commercial VoIP network (we are a communications carrier)... The gatekeeper (Lucent iMerge) supports MGCP/H.323 and allows for calls to be made to the PSTN cloud via GR303 links. I would like to build Asterisks with H323 (or MGCP if need be - SIP availabe w/ future upgrades) and have it attach to our gatekeeper to access the PSTN. Instead of installing a T1/E1 or ISDN or POTS card we would like to use the existing VoIP network. Anyone ran into this before - can provide some direction? --> --> --> --> PSTN Lucent Gatekeeper T1 (or broadband) Asterisk Softphone/endpoint <-- <-- <-- <-- Thanks Robert A. Huddleston, KF4BYY Cavalier Telephone LLC. 804.422.4401 rhuddleston@cavtel.com <mailto:rhuddleston@cavtel.com>