Hi, im looking to set up a card on my elastix box, to act as a T1 trunk, but i am a noob regarding this type of cards, im gonna connect another server that will use analog telephones, but will get the service from the elastix pbx, i will post the requirements of this server, any help would be greatly appreciated, thanks in advance for you help. Jaime. Per T1 trunk grouping: float search type: first protocol: HDLC in band signaling: DTMF select sequence: DSEQ Hunting: Dont care Hunting selection: HDLC framing/line coding: ESF/B8ZS Active B channels: 1-23 B channel negotiation: No D-channel: 24 Facilities: None (i.e. no ANI, FastCall, etc.) CO switch: A supported switch CSU: Tylink Open network server 100 or equivalent (including remote and local loopback modes) the customer is responsible for installation of CSU. Those were the requirements for the server, hope some one can help me find out what card is the one i need, again thanks in advance.