ATM SVC Signalling Mainframe: Enables ATM 155Mbps V2 or mAX Test Module to Set up , Operate, and Tear Down Switched Virtual Circuits (SVCs) up to 155 Mbps. Supports ATM Forum UNI 3.0 - 3.1 - 4.0, or Q.2931 Signalling. (cost new in '02 $3500) Availability: Usually ships the next business day. 53899