🏆 2025 MSP 501 Next Generation List — Recognized for Innovation in Managed Services. Learn more
(877) 622-5835Trusted Cloud Calling, Embedded in Microsoft Teams
Your team already lives in Microsoft Teams. Now embed enterprise-grade telephony, SMS, and fax directly into Teams — no Microsoft Phone System license required. California Telecom's TeamsLink integration delivers 99.999% reliable cloud calling with advanced PBX features, business continuity independent of Teams uptime, and unified communications from a single number. Starting at $19.95/user/month.
Microsoft Teams is already where your employees chat, meet, and share files — but adding enterprise calling through Microsoft's own Calling Plans is expensive, feature-limited, and locks you into their ecosystem. TeamsLink embeds California Telecom's carrier-grade telephony directly into the Teams desktop, mobile, and web apps. You get all the PBX features you need at a lower cost, with no dependency on Microsoft for voice uptime. If Teams goes down, your phones still work.
Simplify your communications with a single business number for calls, SMS, voicemail, and fax — all accessible within Teams. No more juggling multiple apps or phone numbers. Employees make and receive calls from the Teams dialer, send business text messages, and manage voicemail with transcription — all from one unified interface. Administration is streamlined with centralized user management and easy expansion across sites.
Unlike solutions that depend entirely on Microsoft's infrastructure, TeamsLink operates on independent geo-redundant data centers. If Microsoft Teams experiences an outage, your calling service remains fully operational through the standalone app. This business continuity isn't a luxury — it's a necessity. Our 99.999% uptime SLA means less than 5.26 minutes of downtime per year, guaranteed.
Every call is an opportunity to improve. Our AI assistant automatically transcribes calls, identifies key decisions, and assigns action items — all surfaced directly in Teams. Managers get coaching insights to improve team performance, and sales teams close deals faster with AI-generated call summaries and sentiment analysis. No expensive add-on licenses required.
Go beyond basic calling with enterprise features that Microsoft's native solution can't match: heads-up display showing real-time caller info, dynamic call queue management, call park and pickup groups, find me/follow me routing, conference bridges, call recording with compliance archiving, and market-leading analytics — all without a pricey Power BI license.
Choose how you integrate: use our embedded Teams app (no Phone System license needed) or Direct Routing for maximum flexibility. Either way, we handle the entire migration — number porting, user provisioning, Teams configuration, and end-user training. Most deployments complete in under two weeks, and employees see calling features appear directly in their existing Teams app with no new software to install.

No. Our TeamsLink embedded app works without requiring Microsoft's Phone System add-on, saving you additional per-user licensing costs. You only need a Microsoft 365 subscription that includes Teams. We also support Direct Routing if your organization prefers that approach.
Your calling service continues to work. Unlike solutions built entirely on Microsoft's infrastructure, TeamsLink runs on independent geo-redundant data centers. During a Teams outage, users can make and receive calls through the standalone RingCentral-style app, ensuring zero disruption to your business communications.
It means exactly what it says — no per-minute charges and no monthly minute caps for domestic calls. We've read the fine print of every competitor — most have hidden limits at 1,000–3,000 minutes/month. Our unlimited means unlimited for standard business use.
Yes. TeamsLink embeds business SMS and eFax capabilities directly into the Teams interface. Send text messages and faxes from your business number without leaving the app — a feature Microsoft's native Calling Plans don't offer.
Microsoft Calling Plans are more expensive per user, cap calling minutes, lack advanced PBX features like ACD queues and heads-up display, don't include SMS/fax, offer no business continuity during outages, and provide limited analytics. TeamsLink delivers more features, better reliability, and lower cost with 100% U.S.-based support.
Whether it's slow infrastructure or critical downtime, we're here to listen.
After understanding your specific challenges, we provide a customized quote, often the same day.
With our solution in place, you can focus on what really matters: growing your business.
"We really appreciate the professionalism and clear communication California Telecom brings as our managed service provider across network infrastructure, SecOps, and the rest of the backend."
Joe Fancher
Jack Nadel Inc.
"California Telecom customer service is a shining example of what every service provider should offer. Our IT Production Services division is fully dependent on the internet. We've been a California Telecom customer for at least 7 years, and I'm amazed with the support team and level of service."
Oscar Navarro
Sony Pictures
"Long-time customer of California Telecom here, and I can say from experience that these guys are the definition of responsive. I can call or email and within minutes, have a Tier 2 engineer on the line troubleshooting the issue."
Danny Rodriguez
Lanair Group
"California Telecom has demonstrated commitment over the years, providing excellent 24/7 support and services with their T1's, VoIP service, and co-location service. They are as much a part of our business as our customers are."
Hanns Schweis
Thermal Dynamics
"We use California Telecom hosted voice and internet. Very happy since we migrated from traditional carriers like Time Warner and AT&T. Always pass on the referrals if anyone is asking for an ISP."
Vitaliy Sklyar
Netpower
"Service has always been prompt and professional, and I am yet to have any downtime. Much better than Charter and AT&T, who I suffered with for years prior."
Atilla Banoczy
Lanair Group
"We really appreciate the professionalism and clear communication California Telecom brings as our managed service provider across network infrastructure, SecOps, and the rest of the backend."
Joe Fancher
Jack Nadel Inc.
"California Telecom customer service is a shining example of what every service provider should offer. Our IT Production Services division is fully dependent on the internet. We've been a California Telecom customer for at least 7 years, and I'm amazed with the support team and level of service."
Oscar Navarro
Sony Pictures
"Long-time customer of California Telecom here, and I can say from experience that these guys are the definition of responsive. I can call or email and within minutes, have a Tier 2 engineer on the line troubleshooting the issue."
Danny Rodriguez
Lanair Group
"California Telecom has demonstrated commitment over the years, providing excellent 24/7 support and services with their T1's, VoIP service, and co-location service. They are as much a part of our business as our customers are."
Hanns Schweis
Thermal Dynamics
"We use California Telecom hosted voice and internet. Very happy since we migrated from traditional carriers like Time Warner and AT&T. Always pass on the referrals if anyone is asking for an ISP."
Vitaliy Sklyar
Netpower
"Service has always been prompt and professional, and I am yet to have any downtime. Much better than Charter and AT&T, who I suffered with for years prior."
Atilla Banoczy
Lanair Group
Microsoft Teams Calling serving businesses across Southern California: Los Angeles · Orange County · Inland Empire · San Bernardino County · Riverside County · San Diego County · Ventura County · Nationwide