DV 28 Telephone System
Options for expansion
| System | PSTN Lines | Key Stations | SLT |
|---|---|---|---|
| DV22 - D4308H | 3 | 4 | 4 |
| DV28 - D5408C | 4 | 8 | |
| PSTN Line Expansion One per system | |||
| D4TKUA | 3 | - | - |
| Expansion Modules – One per system | |||
| D4DLA | - | 8 | - |
| D4HYU | - | 6 | - |
| D4SLCA | - | - | 4 |
12 Months Manufacturer's Warranty