| title | ISBN-13 | year of publication |
|---|---|---|
| CCNA Voice Study Guide: Exam 640-460 | 978-0-470-52766-5 | 2010 |
| CCNA Voice Study Guide: IIUC Exam 640-460 | 978-81-265-2592-8 | 2010 |
| CVOICE 8.0: Implementing Cisco Unified Communications Voice over IP and QoS v8.0 | 978-81-265-3390-9 | 2011 |
| CVOICE 8.0, with CD: Implementing Cisco Unified Communications Voice over IP and QoS v8.0 | 978-0-470-91623-0 | 2011 |