Blog / Daryna Kulya
Daryna Kulya
Co-Founder at Quo (formerly OpenPhone). Ukrainian-Canadian in SF. Love exploring new hiking trails.
Articles by Daryna
Published July 16, 2026
7 Reasons why your text message didn’t get delivered
You might be surprised at the many reasons why your message didn't make it through. Learn more in this post.

Published November 17, 2025
How to unplug for the holidays without losing customers
Find out the best strategies to help you unplug for the holidays while setting clear expectations with your contacts.

Published January 22, 2025
How to legally record phone calls in the US and Canada
Is it legal to record phone calls? Learn how different states handle call recording and how to record calls legally.

Published January 15, 2025
Share phone number: Call and text as a team
Here's how to give a colleague access to your phone number and set up a phone number that rings multiple people.

Published November 1, 2024
How we got our first 1,000 customers
It was September 2017. We were two months into building Quo, and we were ready to launch our beta and get our first customers.

Published October 23, 2024
How to call Canada from the US & how much does it cost?
Making calls to Canada from the US is a simple process, but beware of fees. Learn how to make calls and save money.

Published July 11, 2024
How to get a toll-free number for your business
This guide answers the question, “What is a toll-free number?” It also covers how toll-free numbers work, what they cost, and how to get one.

Published June 17, 2024
How to prepare for your Y Combinator interview
Did you get an invitation to interview with YC? Congratulations! I remember exactly when we got the much-awaited email for Quo. We stayed up late, anxiously refreshing email, Reddit and Hacker News. The next day we started preparing immediately. To help you prepare, I’d love to share my personal tips and experiences from the interview.…

Published January 2, 2024
The Best Online Fax Services
You'll be surprised how many companies still use faxes for processing documents of all sorts. With an online fax service, you can send and receive faxes via the Internet. Here we go over how online faxes work and share five of the best e-fax services to pick from.

Published December 21, 2023
Inside Quo: Lessons from scaling a startup in 2023
Our Co-Founder Daryna reflects on Quo’s 2023 and shares her lessons learned.

Published May 8, 2023
5 lessons learned in 5 years of building OpenPhone
In the spirit of paying it forward, our Co-Founder and COO Daryna Kulya shares key lessons from building OpenPhone.

Published February 8, 2023
How to Call the Uk from the US: Step-By-Step Guide
Read on to learn how to call the UK from the US. We’ll lay out the four steps to follow whether you’re calling a landline or a mobile phone.
