Serving Central Coast Since 1982
Serving Central Coast Since 1982
Your office phones are down. Calls are going to voicemail. Customers are hanging up. CENCOM repairs business desk phones, PBX systems, VoIP platforms, and legacy telephone equipment — on-site in San Luis Obispo, often the same day you call.
When your business telephone system stops working, every missed call is a missed opportunity. CENCOM has been repairing and maintaining office phone systems across San Luis Obispo since 1982 — from traditional PBX switchboards and multi-line desk phones to modern VoIP platforms and unified communications systems.
We repair the equipment that runs your business: desk phones, conference phones, voicemail servers, PBX hardware, telephone wiring, headsets, and call routing systems. Whether it's a single desk phone that went dead or an entire office phone system that crashed overnight, our technicians diagnose the problem on-site — not over a phone tree from another state.
Most San Luis Obispo businesses get same-day or next-business-day service. We carry common replacement parts for Toshiba, Mitel, Wildix, Cisco, and Avaya systems, so there's no waiting weeks for a part to ship from a warehouse across the country.
These are the calls we get every week from San Luis Obispo offices. If something on this list sounds familiar, we can usually have it resolved the same day.
One or more desk phones won't power on, show no dial tone, or display a blank screen. Could be a failed power supply, bad PoE switch port, or loose telephone wiring behind the wall plate.
Callers hear crackling, echo, or broken audio. Usually caused by degraded telephone cabling, a failing line card in the PBX, network congestion on VoIP systems, or a bad handset cord.
Messages aren't being recorded, the greeting doesn't play, or employees can't retrieve voicemails. Often a voicemail server issue, full storage, or misconfigured call routing on the PBX.
Calls cut off mid-conversation — especially during transfers or conference calls. Typically points to a failing PBX trunk card, SIP registration timeout, or an overloaded network switch that can't handle voice traffic.
Features that used to work suddenly don't — transfers go nowhere, hold music is silent, or call park picks up the wrong line. Usually a programming issue in the PBX or a firmware glitch after a power outage.
Power came back but your phones didn't. The PBX controller, PoE switch, or VoIP gateway may need a proper restart sequence, a battery replacement, or a firmware recovery. We get these calls after every Central Coast storm.
We've worked on every major commercial telephone system sold on the Central Coast over the last four decades. If your brand isn't listed, call us anyway — we've probably seen it before.
Toshiba, Nortel, and many Avaya systems are discontinued — but that doesn't mean yours needs to be replaced tomorrow. We repair and maintain legacy business phone systems for as long as the hardware holds up. When parts run out or repairs stop making financial sense, we'll tell you straight — and help you migrate to a modern VoIP system without losing a day of uptime.
Not every broken phone system needs to be thrown out. Here's how we help San Luis Obispo businesses make the right call — without overselling a replacement you don't need.
We'll inspect your current business phone system, give you a straight diagnosis, and quote both options — repair cost vs. replacement cost — so you can decide with real numbers, not a sales pitch. Call (805) 781-2292 or request a service call.
Questions we hear from San Luis Obispo businesses before scheduling a service call.
Our technicians are based in San Luis Obispo and serve the entire Central Coast. Whether your office is downtown, near Cal Poly, in the airport business corridor, or out in the surrounding communities — we come to you.
If your entire business phone system is down and you're losing calls right now, don't fill out a form — call us directly. We prioritize full system outages for San Luis Obispo businesses.
One call to CENCOM. A local technician at your San Luis Obispo office. Your business phone system back up and running — usually the same day.