Phone System Migration
Migrate from legacy PBX or outdated phone systems to modern VoIP with zero-downtime cutover, number porting, and comprehensive user training.
Overview
Aging PBX systems are expensive to maintain and lack the features modern businesses need. Summit DNC manages complete phone system migrations — from legacy analog and digital PBX to modern VoIP platforms — with meticulous planning that ensures zero missed calls during cutover. We handle number porting, auto-attendant programming, call flow design, and end-user training so your team is productive from day one.
Key Benefits
- 40-60% reduction in monthly telecom costs
- Zero-downtime cutover during migration
- Modern features: mobile app, video, presence
- Elimination of costly PBX maintenance contracts
- Scalable licensing — add seats instantly
- Single platform for voice, video, and messaging
VoIP & Communications
What We Deliver
Legacy PBX to VoIP migration planning
Local and toll-free number porting
Auto-attendant and IVR programming
Call flow design and ring group configuration
Voicemail-to-email and unified communications setup
Analog device integration (fax, elevator, alarm)
Network readiness validation before cutover
End-user and administrator training
Our Process
How We Work
Discovery
Inventory existing phone numbers, extensions, call flows, and analog devices.
Design
Map call flows, auto-attendant menus, ring groups, and voicemail configuration.
Network Prep
Validate QoS, VLAN segmentation, bandwidth, and PoE switch capacity for VoIP traffic.
Staged Cutover
Port numbers, deploy phones in stages, and verify call quality at each phase.
Training & Handoff
Train users and admins, provide quick reference guides, and confirm all call flows work.
Certified Partners
Brands We Install & Support
We are authorized installers and certified partners of industry-leading brands.
Cisco
Global leader in networking, security, collaboration, and communications infrastructure for enterprise and service provider networks.
Avaya
Enterprise communications platforms including IP PBX, unified communications, and contact center solutions.
VoIP & Communications
Related Services
Grandstream Phone System Installation
Expert installation and configuration of Grandstream UCM PBX systems and IP phones, from planning to go-live and ongoing support.
Learn moreSIP Trunking Setup & Management
Replace expensive PRI and analog lines with SIP trunks to reduce costs 40-60% while gaining flexibility, redundancy, and modern call features.
Learn moreCall Center VoIP Setup
Purpose-built call center VoIP solutions with ACD queuing, real-time wallboards, call recording, CRM integration, and supervisor management tools.
Learn moreVoIP Network Readiness Assessment
Validate that your network can support high-quality VoIP before deploying a single phone — bandwidth analysis, QoS audit, switch evaluation, and remediation planning.
Learn moreVoIP Implementation Services
End-to-end VoIP implementation — from network readiness assessment through system deployment, user training, and ongoing optimization.
Learn moreVideo Conferencing Setup
Turn-key video conferencing solutions — room design, camera and display installation, codec configuration, and platform integration.
Learn moreBusiness Messaging Integration
Converge all business messaging channels — SMS, team chat, voicemail, and email — into a unified platform for seamless communication.
Learn moreDirectory Services & Dial Plans
Centralized directory services with LDAP/Active Directory integration — automated user provisioning, company-wide dial plans, and speed dial directories.
Learn moreCall Routing & Management
Intelligent call routing with auto-attendant, ring groups, call queues, and time-based rules — ensuring every call reaches the right person.
Learn morePhone User Provisioning
Zero-touch phone provisioning — plug in a device and it auto-configures with the user's extension, speed dials, BLF keys, and company directory.
Learn morePhone System Design
Strategic phone system architecture for single-site and multi-site organizations — on-premise PBX, cloud UCaaS, and hybrid designs.
Learn morePhone Endpoint Deployment
Large-scale phone endpoint deployment — desk phones, conference phones, cordless handsets, and headsets installed and configured across your organization.
Learn moreCall Quality Optimization
Diagnose and resolve VoIP call quality issues — echo, jitter, dropped calls, and one-way audio — with network-level QoS optimization.
Learn moreVoIP Feature Configuration
Unlock the full potential of your phone system with advanced feature configuration — call recording, paging, intercom, presence, and CRM integration.
Learn moreVoIP User Training
Role-based training programs for VoIP phone systems — from basic call handling to advanced administrator configuration.
Learn moreVoIP Support & Maintenance
Proactive VoIP system support — 24/7 monitoring, firmware management, helpdesk support, and preventive maintenance for uninterrupted communications.
Learn moreUnified Communications Solutions
Converge voice, video, messaging, and presence into a single unified communications platform that works seamlessly across all devices.
Learn moreVoIP Scalability Planning
Plan your phone system for growth — capacity modeling, multi-site expansion strategy, and technology roadmap for the next 3-5 years.
Learn moreFAQ
Common Questions About Phone System Migration
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Get a Quote for Phone System Migration
Contact our team for a free assessment and project scope. Most projects quoted within 48 hours.