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)