Business Phone Systems
Maximize Efficiency with SIP Trunking for Your Existing Phone System
If your business runs a modern PBX, you can leverage SIP trunking without overhauling your phone infrastructure. Telnamix specializes in transitioning companies to cost-effective internet calling while keeping the equipment you already own.
What is SIP Trunking?
Your Phone Lines, Delivered Over the Internet
SIP (Session Initiation Protocol) trunking replaces traditional phone lines with virtual ones delivered over your internet connection. Instead of leasing physical PRI circuits with fixed capacity, your phone system connects to the telephone network through SIP "trunks" that carry calls as data — the same calls and the same phone numbers, without the cost and rigidity of legacy lines.
Because SIP trunking connects to the PBX you already own, it is usually the fastest way to modernize business communications: no forklift upgrade, no retraining, no new handsets. You add or remove call capacity as your needs change, multiple locations can share the same trunks, and calls reroute automatically if your internet or site goes down — which is why growing and multi-location businesses make the switch.
Core Benefits
Save Money, Stay Connected, and Improve Communication
Lower Monthly Costs
Eliminate expensive PRI lines and pay only for the capacity you need.
High-Quality Voice Calls
Modern VoIP technology ensures clear, reliable communication.
Scalability
Easily adjust call paths as your business needs change.
Built-In Disaster Recovery
Automatic call rerouting keeps you reachable during outages.
Multi-Site Compliant E911
Advanced 911 features for multi-location operations.
Flexible Integration
Seamless connection with your existing systems and tools.
Compatibility
Works with the Hardware You Already Have
Our SIP trunks are compatible with IP-based phone systems from brands like Yealink, Cisco, Avaya, and 3CX — no expensive upgrades required. You also get web-based management, unified communications (call, text, video), secure remote work, and web chat with Facebook Messenger integration.
Why Choose Telnamix
Transparent Pricing, Responsive Support
SIP trunking is only as good as the carrier behind it. Telnamix runs its own platform and carrier services, so when you call support you reach U.S.-based engineers who can see your trunks end to end — not a reseller relaying tickets to a vendor. Questions get answered by people who administer SIP trunks every day.
Pricing follows the same common-sense approach as the rest of our services: you pay for the call capacity you actually use, with no hidden fees and no long-term contracts. And the implementation is a proven process, not an experiment — we assess your PBX and network first, handle the number-porting paperwork for you, and schedule the cutover so your business never misses a call.
Transparent Pricing
Capacity-based pricing with no hidden fees or long-term contracts — pay for the simultaneous calls your business actually carries.
Responsive U.S.-Based Support
Real engineers answer your questions and can see your service end to end, from the trunk to the handset.
Proven Implementation Process
Network assessment, number porting with the paperwork handled, and a scheduled cutover with minimal disruption.
Keep your phones. Lower your bill.
Find the perfect fit for your business, backed by our expertise and support—we’ll match the right solution to your needs.