... EHWIC slots, 2 DSP slots, 1 ISM slot, 256MB CF default , 512MB DRAM default, IP BaseCISCO2911/K9Cisco ... EHWIC slots, 2 DSP slots, 1 ISM slot, 256MB CF default , 512MB DRAM default, IP BaseCISCO2921/K9Cisco ... EHWIC slots, 3 DSP slots, 1 ISM slot, 256MB CF default , 512MB DRAM default, IP BaseCISCO2951/K9Cisco ... EHWIC slots, 3 DSP slots, 1 ISM slot, 256MB CF default , 512MB DRAM default, IP BaseSL-29- ...