VoIP & 3CX for Modern Communication

Cloud, secure, scalable and ready for hybrid work.

Why 3CX with Horizon-IT?

One platform for fixed and mobile reachability. We handle design, implementation, migration and ongoing management — focusing on call quality, security and everyday simplicity.

Reachable on Any Device

Webclient, desktop softphone and iOS/Android apps. Transfer calls and view presence in a single click.

Smart Callflows

IVR, queues, schedules, voicemail-to-email and custom menus per department.

Secure by Design

TLS/SRTP encryption, IP allowlists, SBCs and dedicated voice VLANs ensure stable and secure calls.

Insight & Reporting

Real-time wallboards, SLA reporting and exports for management insight.

What We Deliver

Design & Sizing

Cloud or on-prem setup, concurrent call planning, codecs and QoS configuration.

SIP Trunks & Numbers

Integration with SIP providers, number porting and tested failover plans.

SBC & Network

3CX SBC, NAT/firewall configuration, VLANs, DSCP/QoS and bandwidth planning.

Device Provisioning

Yealink/Fanvil/Grandstream auto-provisioning, firmware management and softphone rollout.

Callflows & IVR

Schedules, queues, menus, voicemail and business hours per branch.

Management & Support

Monitoring, updates, backups, monthly reports and responsive helpdesk with SLAs.

Quick Facts

Platform:3CX
Devices:Yealink • Fanvil • Grandstream
Security:TLS/SRTP • SBC • IP allowlists

We advise the right mix of softphones and desk phones.

Quality & Security

Stable voice quality with QoS and clear security baselines.

TLS/SRTP by default 3CX SBC QoS/DSCP Rate-limiting Failover & backups

Packages & Functionality

Feature	Essentials	Enterprise
Webclient & mobile apps	Included	Included
IVR, queues & schedules	Included	Advanced (multi-level)
Device provisioning	Standard	Advanced (templates/roles)
Reporting & wallboards	Basic metrics	Advanced + export
Integrations (CRM, webhooks)	—	Available
Redundancy & failover	—	Included
Support & SLA	Office hours	Extended (optional 24/7)

SMBs & Project Teams

Essentials

Everything for professional communication: IVR, queues, apps and basic reporting. Ideal for single-site or starter setups.

Multi-site & Call Center

Enterprise

Extended call center features, integrations, failover and custom reporting. Perfect for organizations with higher demands.

Frequently Asked Questions

Yes. We document existing numbers, routing and opening hours, build a parallel 3CX environment and plan the porting with a verified rollback option.

Many SIP phones are supported. We check model and firmware compatibility and advise on replacements or softphone alternatives if needed.

Through VLAN segmentation, QoS/DSCP, appropriate codecs and an SBC for reliable connectivity across offices or over the internet.

Yes, there are multiple integration options. We discuss your goals (calling from Teams, presence, routing) and choose the best fit.

Ready for Professional VoIP with 3CX?

We design, migrate and manage your phone system — with focus on quality, security and convenience.

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