Cortelco 1 4-Line Multi-User manual download
- Cortelco 1 4-Line Multi-User manual download
English 
- Bedienungsanleitung Cortelco 1 4-Line Multi-User
- Cortelco 1 4-Line Multi-User manual
- Mode d'emploi Cortelco 1 4-Line Multi-User
- Инструкция по эксплуатации Cortelco 1 4-Line Multi-User
- Manuale d'uso Cortelco 1 4-Line Multi-User
- Manual de instrucciones Cortelco 1 4-Line Multi-User
- Manual de uso Cortelco 1 4-Line Multi-User