3.0 of 5 18 reviews
www.ibasis.com Burlington, MA 150 to 499 Employees
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$1 to $2 billion (USD) per year

iBasis has laid a foundation for Internet telephony. The company, a subsidiary of Dutch telecommunications service provider KPN, primarily sells wholesale access to its international VoIP (voice-over-Internet protocol) network to other voice and data service carriers and resellers in about 100 countries. Its long distance services are enabled through agreements with regional providers worldwide who handle termination of calls. iBasis' clients have included China Unicom and Telefónica . While its core segment is wholesale VoIP access, the company also sells retail prepaid... More

Working at iBasis

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Employees say it's “OK”   18 ratings


86% Approve of the CEO   7 ratings

iBasis CEO Willem Offerhaus

Willem Offerhaus


Account Analyst

 Former Analyst

Pros: Very lovely team. Pay was not too bad. Small office made up of very diverse group of people. Flexibility with regards to remote working. Full Review

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Declined Offer – Reviewed Jun 24, 2013

Interview Details – It was like 6 people interviewed and among them 5 rounds are technical and one is hr. The uncertainty is that they won't ask you the questions that are in job requirements. One technical round is very informal and impolite.Full Interview

Interview Question:
SIP workflows Answer Question

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