1. 642-642 QoS  Quality of Service (QoS)   
2. 642-432 CVOICE  Cisco Voice over IP (CVOICE)與Cisco Voice over IP Fundamentals (CVF)   
3. 642-426 TUC  Troubleshooting Cisco Unified Communications Systems (TUC)   
4. 642-444 CIPT 4.1 Cisco IP Telephony Part 1 (CIPT1 4.1)以及 Cisco IP Telephony Part 2 (CIPT2 4.1) 
或 
    642-445 CIPT 5.0 Cisco IP Telephony Part 1 (CIPT1 5.0)以及 Cisco IP Telephony Part 2 (CIPT2 5.0)