Cisco IOS Release 12.1(2)T

• AAA Server Group Deadtimer

• DHCP Server Options Import and Autoconfiguration

• Bidirectional PIM

• Cisco IOS DHCP Relay Agent Support for Unnumbered Interfaces

• Cisco IOS Dynamic Host Configuration Protocol Client

• Configurable Timers in H.225

• Configuring Cisco MC3810 Series Concentrators to Use High-Performance Compression Modules

• Configuring T1/E1 High Capacity Digital Voice Port Adapters
  Cisco 7200 and 7500 series routers

• Dial Peer Enhancements

• Frame Relay PVC Interface Priority Queueing

• Frame Relay-to-ATM Network Interworking (FRF.5)

• Frame Relay-to-ATM Service Interworking (FRF.8)

• FRF.12 Support on Additional Platforms

• FRF.12 Support on Switched Frame Relay PVCs

• Gatekeeper to Gatekeeper Redundancy and Load-Sharing

• Low Latency Queueing for Frame Relay

• PRI and BRI QSIG Protocol Support on Cisco 2600, 3600, and MC3810 Series Routers and PRI QSIG on the Cisco 7200

• Simple Gateway Control Protocol Support on Cisco MC3810 and Cisco 3600 Series Routers

• Transparent CCS and Frame Forwarding Enhancements on the Cisco MC3810

• Trunk Conditioning Enhancements on Cisco MC3810 Series Concentrators

• Voice Busyout Enhancements on the Cisco 2600 and 3600 Series Routers and MC3810 Series Concentrators

• Voice over ATM with AAL2 Trunking on Cisco MC3810-V3 Concentrators

• Voice over Frame Relay Using FRF.11 and FRF.12 Configuration Updates
  Cisco IOS Release 12.1(2)T

• Voice over IP for Cisco MC3810 Series Concentrators

• Voice Port Enhancements in Cisco 2600 and 3600 Series Routers and MC3810 Series Concentrators

• Voice Port Testing Enhancements in Cisco 2600 and 3600 Series Routers and MC3810 Series Concentrators