Business Phone Systems
From Trenton, CoreNet helps organizations across Southeast Michigan, Metro Detroit, and Downriver Michigan modernize business phone systems with managed VoIP, cloud phone service, unified communications, and network-aware support—especially where missed calls mean missed appointments.
From the field · Five-agent brokerage
In this anonymized engagement, CoreNet consolidated disconnected phone and internet services into one manageable communications setup.
Read the case studyAnnual savings
$4,200
Team size
5 agents
Support ownership
One provider
What we manage
We confirm scope after discovery and write down who handles what.
Communications expertise
We work from the current environment, carrier relationships, and business requirements rather than forcing every organization into the same platform.
Based in Trenton, CoreNet supports business phone systems across Southeast Michigan, including Wayne, Oakland, and Macomb counties. For Downriver offices in Trenton, Woodhaven, Brownstown, Riverview, Wyandotte, and Southgate, we coordinate phone service with the network and internet connection it depends on. We start with your call flows, locations, current contracts, and support needs.
CoreNet can help with 3CX deployment, migrations, ongoing management, troubleshooting, and SIP connectivity when 3CX is a fit for the business and its carrier setup.
We help plan Teams Phone, coordinate migrations and calling requirements, and work with the carrier or provider involved. Direct Routing and Operator Connect depend on the selected provider and the agreed project scope.
Where a business already relies on Cisco Unified Communications, CoreNet can help assess and troubleshoot CUCM, Unity, CUBE, and SIP dependencies, including migration planning when the environment is changing.
We help coordinate SIP trunks, number porting, carrier communication, call routing, and troubleshooting so phone issues have a clear owner across the telecom stack.
Before changing providers, we review the numbers you need to keep, carrier account details, call routing, voicemail, and any fax or other services tied to existing lines. We coordinate porting dates, test inbound and outbound calls, and plan the cutover with your team. Keep existing service active until number transfers and testing are complete.
For businesses with multiple offices or hybrid teams, we plan consistent users, call flows, network dependencies, provider coordination, and support ownership across locations.
Business outcomes
Lower telecom complexity
Better call reliability
Cleaner support ownership
More flexible communications
How it works
We review carriers, phone lines, internet dependencies, hardware, costs, and user needs.
We plan cloud phone service and managed VoIP around call quality, reliability, and business continuity.
We help users adopt the system and support ongoing changes, routing, and troubleshooting.
Questions
In many cases, yes. We check number portability with the receiving provider, confirm the current carrier account details, and coordinate the transfer. Timing and eligibility depend on the carriers, so existing service should stay active until the port is confirmed.
VoIP is the technology that carries calls over the internet. Cloud phone systems are hosted business phone platforms that use VoIP and include features like routing, voicemail, and user management.
Often, yes. We can audit current contracts, consolidate vendors, and modernize communications where it makes financial and operational sense.
Related capabilities
Talk it through
Start with a focused conversation about your systems, recurring issues, and business priorities.
