Services / Voice
VoIP & IP-PBX
Voice over IP carries telephone signalling and media as IP traffic. An IP-PBX is the call-control system behind extensions, trunks, hunt groups and voicemail. Call quality, numbering and resilience are planned with the rest of the network — not bolted on afterwards.
- Call control
- On-premises or hosted
- Trunks
- SIP and numbering
- LAN
- PoE, VLAN and QoS
- Operations
- Dial-plan backup
How a typical voice engagement runs
01
Agree call flows
Concurrent-call capacity, handset types and numbering are agreed first. The LAN is checked for PoE, VLAN and QoS.
02
Cut over
Migration from a legacy PABX can be staged as a hybrid if the site cannot change in a single window.
03
Operate
Registration, trunk status and quality issues can be monitored. Moves, adds and changes are logged through Verico Clientzone.
Call control on a network that was designed for it
IP-PBX design
Hosted or on-premises call-control sized to extensions, concurrent calls and the features the organisation requires.
SIP trunking
Session-border considerations, trunks and emergency-calling arrangements agreed before cutover.
Endpoints
Desk phones, softphones and common-area devices, with provisioning and user training as scoped.
Call flows
Hunt groups, IVR, voicemail and call recording where licensed — written from how the organisation actually answers the phone.
LAN readiness
PoE, voice VLAN and quality-of-service checked before a legacy PABX is taken out of service.
Number porting
Coordination with the losing operator so that numbering changes are part of the cutover plan, not a surprise on the day.
Multi-site environments
A single dial-plan can span branches, with local breakout or centralised trunks according to the numbering and resilience requirements of the organisation.
Dependency on the plant
Voice quality depends on structured cabling, switching and the WAN edge. Those capabilities are scoped on their own pages unless the brief asks for a combined design.
Related capabilities
These are quoted separately unless the brief asks for a combined design. They sit on the same ICT estate.
- Network Infrastructure & Structured CablingCopper and fibre plant designed, labelled, tested and documented for enterprise buildings and campuses.Infrastructure — read more
- Enterprise LAN & WLANSwitching, VLANs and enterprise wireless designed for coverage, capacity, security and operations.Wireless — read more
- Internet & ConnectivityBusiness internet and site connectivity engineered around availability, routing and the rest of the ICT estate.Connectivity — read more
- Network MonitoringVisibility of links, devices and services so faults are found before users open a ticket — where the contract includes it.Operations — read more
- CybersecurityNetwork-centric security controls aligned to the LAN, WAN, identity and the organisation’s operating constraints.Security — read more
- Servers, Infrastructure & Managed ICTOn-premises servers, switching and storage, with managed operations and a written service agreement where required.Infrastructure — read more
Common questions
Scope, handover and what is not implied by this page.
Will replacing the PABX fix poor call quality?
Not by itself. Choppy audio often traces to congestion, missing quality-of-service or plant that was never designed for voice. The LAN and WAN are checked before a platform change is recommended as the only fix.
Can we keep existing numbers?
Number porting is coordinated with the losing operator where the numbering plan requires it. Lead times are those of the operators, not a date invented on this page.
Discuss VoIP and IP-PBX
Request a consultation for call control that is designed with the LAN, the numbering plan and the organisation’s call flows.