25+ Years in San Antonio supporting local businesses with reliable technology.

25+ Years in San Antonio supporting local businesses with reliable technology.

We have been installing 3CX phone systems longer than any other provider in San Antonio. Our standard system includes smartphone apps, voicemail to email, office chat, caller id, auto attendants, call recording, call reporting, simultaneously ring your mobile, and the ability to make your own changes to your phone system from anywhere. Call us for a free demo or phone system proposal. 210.390.3700

 Software is included. Live Phone System Status Viewing from any PC.

Software is included. Live Phone System Status Viewing from any PC.

 Basic changes can be made by the office admin through the console.

Basic changes can be made by the office admin through the console.

Voice over Internet Protocol, more commonly known as VoIP, has been installed the same way for a long time.  We started installing phone system technology differently about 5 years ago.  The results were clear, perfectly clear.  The key is carrier SIP over Fiber.  Let us do the work and engineering of the system.  Contact us now for a free demo or consultation.

Telecommuters or people working from outside the office can make calls free of charge – saving your business significant charges. Connect remote offices by using bridges and all calls between offices are free. International DID's and IP Telephony allow customers to call you cheaply and increase customer satisfaction.

 iOS and Android apps are included w/ 3CX

iOS and Android apps are included w/ 3CX

Acclaimed Android and iOS VoIP Clients

3CX features native Android and iOS VoIP clients that are continuously updated and tested and set the standard for mobile phone VoIP clients. Calling from over 3G/4G or from any Wifi hotspot is extremely reliable. 3CX Android and iOS clients fully support PUSH, allowing the phone to be on standby and save battery life.

  • Most advanced and reliable Android & iOS VoIP clients on the market

  • No additional licensing costs for softphones

  • “PUSH” notifications save mobile battery life

 Full Color Screens w/ Gigabit Speeds $100ea and up.  3CX integrates with most IP Phones, Yealink, Fanvil, and more...

Full Color Screens w/ Gigabit Speeds $100ea and up.

3CX integrates with most IP Phones, Yealink, Fanvil, and more...

3cx desk phones

3CX standard IP desk phones are feature rich.  They provide the familiar phone features you are used too but can offer a lot more if you want to use the technology that is in your phone system.

Let us know if we can provide you with a demo or onsite evaluation.  We have been in San Antonio for 25+ years and plan on being here for a long time to come.

CRSA+ Technologies can implement a reliable and future-ready IP Phone System when you are ready.

 Tablets, Laptops, or PC's all can become a phones with the app.

Tablets, Laptops, or PC's all can become a phones with the app.

Use Your Extension From Anywhere

With the 3CX VoIP clients for Android and iOS, you can take your extension wherever you go. 3CX delivers the one number concept meaning that you no longer have to give out your mobile number. Set your status so your colleagues can see whether or not you are available to take a call.

  • Make and receive calls from your smartphone – at no cost

  • Set your status to available, away and out of office from your smartphone

  • One number concept

  • See the presence of your colleagues from anywhere