Delivering information on business communication
We’re pleased to welcome Yokohama International School to CIRCLE! Founded in 1924, YIS has recently made the move to cloud communications, adopting CIRCLE’s desk phones, PC softphones, and mobile apps to give staff greater flexibility throughout the school day.
In response to the critical PHP vulnerabilities reported worldwide, CIRCLE Cloud Communications provides an update on its security status and response. Our core communications systems are not directly affected, and we have found no indication that customers’ personal information has been compromised.
Japan’s customer harassment prevention requirements took effect on October 1, 2026. Now that the new requirements are in force, how should companies handle customer harassment over the phone, and what role does call recording play? This guide explains response steps, when to end abusive calls, and how to use and manage recordings.
CIRCLE Mobile App Version 7.0 launches on October 15, 2026 with a refreshed design and updated interface. Learn what’s changing, access the new user manuals, and join the October 14 webinar.
Learn how WebRTC works, from signaling, ICE, STUN and TURN to encryption, codecs, and phone-network gateways, plus what businesses should check before rollout.
Learn what a softphone is, how PC softphones work, and what businesses should check before using one with a cloud PBX or VoIP phone system.
QuickFAX dedicated adapter (FAX ATA) that has been used in connection with multifunction devices, will be discontinued.
As of January 8th, 2026,
the QuickFAX portal is https://fax.circleip.com
The Universal Service Fee for telephone services will be revised starting January 2026 Invoices
If you’re office is located in a Virtual Office, you’re unable to obtain 03, 06 or any regional numbers.
The Universal Service Fee for telephone services was revised on July 2025
When it comes to the deskphones, traditionally, the device has a handset with a speaker and mic. However with Snom deskphones, you can also connect a headset to promote fatigue free calling. A headset is essentially headphones equipped with a microphone. This means that you don’t need a separate mic for making calls while listening to the audio. Using a headset allows for hands-free operation of the telephone, allowing you to focus solely on the call without typing with one hand or trying to hold the handset up between your ear and shoulder.
(Office hours: weekdays 9:30-17:30)
Please use this form to contact us if you have any questions or queries about our services by email. We will reply within three working days.
We will provide detailed explanations of the service and conduct meetings either online or in-person. Please feel free to reach out to us for further inquiries.
You can experience CIRCLE’s services free of charge for 10 days. Feel free to proceed with a contract after ensuring its suitability for your needs.
We will create a detailed quotation based on your specific requirements. If you are unsure about the necessary options, we will also provide recommendations.