Manuals and User Guides for VTech CS6609. We have 1 VTech CS6609 manual available for free PDF download: User Manual Your telephone base supports a maximum of five handsets. For more details, refer to the user's manual that comes with your CS6609 new handset. Appendix. Important safety instructions on page 5 of this manual. This manual has instructions on how to set up and register your new handset. For complete instructions View online(14 pages) or download PDF(3.37 MB) VTech CS6609-16 User`s manual • CS6609-16 telephones pdf manual download and more VTech online manuals. User's manual. CS6609. DECT 6.0 accessory handset for use with VTech models This manual has instructions on how to set up and register your new handset. product package are already registered as HANDSET 1 and so forth. You can add. new handsets (CS6609, purchased separately) to your telephone base.User's manual. CS6609. DECT 6.0 accessory handset. for use with VTech models. CS6619/CS6629/CS6648/CS6649. Congratulations. Enter your model number to retrieve manuals, frequently asked questions (FAQs), troubleshooting tips, Manuals & Documentation. CS6609 User Manual