Level 3 work instruction
NR/L3/TEL/30181/011
Maintenance of Operational Telephones
Issue 2, 05 March 2022
Maintenance module — operational telephones
Section headings
We have not yet written plain-words notes for every clause of this one; the headings below show its shape.
| 1 | Purpose | |
| 2 | Scope | |
| 3 | Requirements |