ONSIM

ONSIM provides enterprise-grade connectivity by leveraging the UK’s most robust infrastructure and a global network of premium partners.In the United KingdomOur service is powered by the UK’s leadi...

 While we do not offer traditional "free" trial periods, ONSIM is designed for maximum flexibility with no long-term commitment.30-Day Rolling ContractsAll ONSIM SIM services operate on a 30-day ro...

When you send an SMS, the recipient will see your underlying mobile number (the one linked directly to your SIM).Key Points to RememberLandline SMS: Landline numbers are for voice calls only; they ...

Yes, we offer IVR set up for ONSIM systems.What is an IVR?An IVR is an automated recording that directs callers to the correct department based on their input. For example: "Press 1 for Sales" "Pre...

 Network Coverage and TechnologyAt ONSIM, we prioritise call quality and connection reliability above all else.Our Network PartnerONSiM SIMs utilize the EE network to provide industry-leading cover...

If you need to update the company name associated with your ONSIM account, you can do so instantly via your dashboard or by contacting our support team. How to Update Your Company Name 1. Self-Se...

 Transferring a call on your MobileYou can transfer an active call from your mobile device using two methods: Blind Transfer or Assisted Transfer. Blind transferA blind transfer sends the caller di...

A Memorable Number (also known as a "Gold" or "Premium" number) features recurring digits or easy-to-recognize patterns (e.g., 020 3XXX 4444). These are highly effective for marketing materials, ve...

Porting your number to ONSIM is usually a seamless process, but because the UK telecoms network relies on exact data matching between providers, even a tiny typo can cause a rejection.If your port ...

Wi-Fi Calling allows you to make and receive crystal-clear calls and text messages over a Wi-Fi connection when your cellular signal is weak or unavailable (such as in basements, rural areas, or th...