Phonewire, Inc.

Phonewire, Inc. "Good technology is intuitive, better technology is transparent, the best technology is invisible."

Phonewire installs and supports business phone systems for the St. Louis metro and Nationwide — on-premise and cloud PBX, VoIP and SIP lines, business texting, intercom and paging, and desk phones that keep working through internet outages: service fails over to the cellular data network, not just to your cell phone. We replace end-of-life NEC, Avaya, Mitel, Toshiba, and Nortel systems and move bu

sinesses off retiring POTS/copper lines. Police departments, medical offices, and surgical centers trust us with phones that can't fail. U.S.-based technicians answer every call — no offshore call centers, no bots. We supply and install our own systems, so we don't quote install-only or cabling work. 25+ years in telecom — we actually show up.

Happy 250th, America! 🇺🇸 Celebrating two and a half centuries of freedom, community, and the connections that bring us a...
07/04/2026

Happy 250th, America! 🇺🇸 Celebrating two and a half centuries of freedom, community, and the connections that bring us all together. Proudly keeping you connected at Phonewire!

Address

1111 S Lincoln Avenue, Suite 652
O'Fallon, IL
62269

Opening Hours

Monday 8am - 4pm
Tuesday 8am - 4pm
Wednesday 8am - 4pm
Thursday 8am - 4pm
Friday 8am - 4pm

Telephone

+16186281552

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