PBX
Overview
- Network: PBX
Applications
Asterisk
This is our PBX server. It handles internal and external voice calls.
Kea DHCPv4
Manages DHCP for PBX devices. Leases stored in /var/lib/kea/dhcp4.leases. Timers: renew 1000 s · rebind 2000 s · valid-lifetime 4000 s.
Two subnets are served — one for the permanent space install (HACKWERK) and one for the events variant (FAT26). Both are structurally identical.
pbx — 10.40.42.0/24 (HACKWERK)
| IP | Device / Role |
|---|---|
10.40.42.2 |
Gateway, DNS, NTP |
10.40.42.10 |
PBX / Asterisk (Gatekeeper) |
10.40.42.55 |
DECT OMM (OpenMobility Manager) |
10.40.42.60 – .99 |
DHCP pool — Innovaphone SIP phones |
10.40.42.100 – .119 |
DHCP pool — DECT base stations |
10.40.42.120 – .140 |
DHCP pool — clients with no known vendor-class-identifier |
pbx-events — 10.10.50.0/24 (FAT26)
| IP | Device / Role |
|---|---|
10.10.50.1 |
Gateway, DNS, NTP |
10.10.50.5 |
PBX / Asterisk (Gatekeeper) |
10.10.50.15 |
DECT OMM (OpenMobility Manager) |
10.10.50.60 – .99 |
DHCP pool — Innovaphone SIP phones |
10.10.50.100 – .119 |
DHCP pool — DECT base stations |
10.10.50.120 – .140 |
DHCP pool — clients with no known vendor-class-identifier |
Client classes
innovaphone — matched by vendor class 1.3.6.1.4.1.6666. Vendor-encapsulated options sent to phones:
| Option | Code | Value |
|---|---|---|
| Gatekeeper-Identifier | 201 | host-specific PBX IP |
| VOIP-Protocol | 220 | SIP/UDP |
| Coder | 203 | G711A,20,/G722,20, |
| Dial-Tones | 210 | 1 (DE) |
| Language | 204 | ger |
| AM-PM-Clock | 213 | 0 (24 h) |
dect — matched by vendor class OpenMobility3G. Sends vendor-class-identifier back and dect-omm-ip (option 19) pointing to the OMM IP of the respective host.
Devices
Mitel DECT RFPs
Radio fixed parts for DECT wireless phones.
Innovaphone Deskphones
Wired SIP desk phones.
| Extension | Location |
|---|---|
| 1001 | Telefon Space |
| 1002 | Telefon Holzwerkstatt |
| 1003 | Telefon Küche |
| 1004 | Telefon Serverraum |
| 1005 | Telefon Lasercutter |