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0.0/5 • Glassdoor rating


OnCalla Call Centers is a live answering service that is completely staffed with native English speakers. At each of our locations, you’ll find highly-trained, friendly operators who are utilizing state-of-the-art technology to make your business run more smoothly. Our call agents are spread out across Guyana South America once a British colony.



Public or Private


Seats or staff



$1 mil. - $5 mil.





Senior DeMendonca, CEO

Year Founded


Countries of fulfillment




Contact information

1 844 307 2500

About OnCalla: Review and comparison

Oncalla is an offshore Business Process Outsourcing (BPO) provider specializing in live answering services. The company uses the latest state-of-the-art technology and highly trained staff to help businesses run more smoothly. 

An experienced staff of about 150 people can handle inbound calls from medical, legal, and business customers anytime, day or night. They can set appointments, take messages, and answer help-desk questions to provide customer and patient support. 

OnCalla Outsourcing

Oncalla’s headquarters are in Sheridan, Wyoming, with multiple call-center locations spread across Guyana, South America. All operators are native English speakers, which gives callers confidence in the communication and reduces confusion and misunderstandings. 

Guyana-based operators familiar with US customs and culture help US-based businesses avoid missed calls and opportunities. Friendly agents, the latest technology, and the lower cost of near-shore outsourcing help businesses compete in the marketplace. 

Medical offices benefit from live answering services by letting patients skip automated phone trees that can waste time and cause frustration. 

OnCalla’s BPO services and pricings

Oncalla provides answering services for businesses across several sectors, from medical to retail. Some of the offerings include:

  • Medical answering service
  • After-hours answering
  • Customer care and retention
  • Dispatch services
  • Hotlines
  • Inbound customer service support
  • Help desk services
  • Inbound call center
  • Virtual assistant. 
  • Overflow answering service
  • Fulfillment order-taking
  • Appointment setting
  • Virtual receptionist

Oncalla handles all call service center needs with 24/7 live answering. The firm has clients that rely on Oncalla workers for all inbound call center needs. The company also serves those who only need overflow answering or night, weekend, and holiday support. 

Oncalla’s pricing

Pricing varies according to each client’s needs, so potential customers should contact Oncalla through their website. Clutch estimates the cost of services at an average of $150 to $199 per hour and the minimum project size at $25,000. The LinkedIn page states that a live operator costs $6 per hour. 

The experienced staff can help businesses determine the number of operators and the scope of the services they need. 

How OnCalla outshines its competition

Oncalla provides services for businesses, with clients in varied industries including medical, HVAC and industrial, funeral homes, landscapers, and veterinarians. The company will customize its services for each business to provide industry-specific solutions. 

In addition to native-English speakers, Oncalla provides a 24/7 live answering service, bilingual operators, customized scripts, HIPAA compliance, and a suite of tools clients can use to monitor performance. 

Key executives

Senior DeMendonca (CEO)

Mr. DeMendonca studied Information Technology at the University of Phoenix. After working as a Project Manager at Akibia Consulting for more than four years, he founded Ambers Life II, Inc., a limo and car service in the New York tri-state area. He served as President of the company for 12 years before founding and becoming the CEO of Oncalla in 2017.

OnCalla reviews and comparisons

Oncalla provides live answering services for small and midsize businesses. One positive client review at Clutch stressed their personable approach and 24/7 availability. We recommend comparing the company with other midsize offshore answering service providers headquartered in the United States.

OnCalla’s contact information

OnCalla’s main headquarters is located in:


Further, you may virtually reach out the company through the following contact information:

In addition, you may email them at [email protected] or call 1 844 307 2500.


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