... cards, synchronous/asynchronous interface cards, ADSL2+/G.SHDSL interface cards, FXS/FXO voice cards, ISDN interface cards, CPOS interface cards and ... slots 2 GbpsXSIC & EXSIC slots 20 GbpsFixed WAN ports3 * GE (1 * combo port)3 * GE (2 * combo ports)SIC slots44WSIC slots (default ... managementVoiceRTP, SIP, SIP AG, IP PBX/TDM PBX, FXO/FXS, VoIP/conference call3GCDMA 2000 EV-DO Rev A, WCDMA, individual ...