Learn how to build a fully-functioning call center app with multiple clients using the Telnyx Voice API, TeXML, and Python.
By Odhran Reidy
Building a call center can seem like a daunting task. There are lots of moving parts to think about --- phone numbers, SIP connections, call forwarding, call bridging, soft-phone clients, IVR systems, and more.
Because of this complexity, businesses often resort to one-size-fits-all solutions. They're popular for good reason, but as the moniker suggests, they're not always the best fit. Plenty of businesses pay over the odds for a platform with esoteric features that they'll never use. Worse still, some businesses try to scale on an underpowered platform with poor configurability and run into endless problems because of their poor call center foundations.
At Telnyx, we don't believe you should have to choose. Your call center should work for your business, taking care of the basic functionality that you expect while allowing you to dive in and tweak anything you like, whenever you need to. And crucially, you should only pay for what you use. No eye-watering platform fees, just affordable prices based on how many phone numbers you need, how many minutes you use, and how heavily you use (or don't use!) advanced features.
With TeXML, there's no need to worry about complexity. Simple verbs and nouns arranged in a script allow for advanced Voice API with minimal code. This simplicity is the key to standing up a fully-functional call center application in less than fifteen minutes, using open-source sample code from our Python demo repository on GitHub.
Check out the video walkthrough:
Resources used in the video:
Download and set up ngrok to connect your locally-running application to the internet.
Get the code from GitHub. The sample repo features advanced features like call forwarding, call recording, and an IVR that can be easily customized to meet your use case. What's more, the sample app lays all of the foundations you need to fully integrate your call center with Slack, and our in-depth readme gives you all the tools you need to start customizing the pre-built call flows.
Test out the WebRTC client used in the video to make and receive calls directly from your browser.
Follow our written step-by-step tutorial.
This demo application was inspired by our recent transition to a TeXML-based contact center for our very own expert support team. Read about how we used the Telnyx Voice API, Python, and AIOHTTP to build an advanced, bespoke call center in our two-part blog series.
Interested in building the contact center that's right for your business with TeXML and the Telnyx Voice API? Chat to an expert today.
Related articles