Older ZIP IP Telephones Model User Guides
- ZIP 2x2 User Sheet (PDF opens in new window)
- ZIP 33i Quick Reference Guide (PDF opens in new window)
- ZIP 5 Series Administrator Guide (PDF opens in new window)
- ZIP 53e Advanced User Guide (PDF opens in new window)
- ZIP 55i User Guide (PDF opens in new window)
- ZIP 55i Advanced User Guide (PDF opens in new window)
- ZIP 57i User Guide (PDF opens in new window)
- ZIP 57i Advanced User Guide (PDF opens in new window)