Tired of picking up withheld calls that lead nowhere? With Tamar Telecom’s Anonymous Call Rejection feature, you can automatically block any incoming call that doesn’t present a valid caller ID—saving your time, protecting your focus, and keeping nuisance calls at bay.
Whether you’re a solo professional or running a busy business line, this simple feature adds an extra layer of control and professionalism to your communications—without lifting a finger.
The anonymous call rejection ACR service can be enabled on specific numbers or all of your Tamar Telecommunications provided numbers.
When a caller tries to call your number with the Anonymous Call Rejection ACR service enabled, the caller would hear the following message:
“The person you are calling is not accepting anonymous calls. Please redial without withholding your number.”
The ACR service can be added and removed from numbers instantly online via the control panel and the mobile app.
We also provide a service for blocking calls from specific numbers. The Blacklist feature allows certain numbers to be blacklisted, which effectively blocks the call. More information is available on the Blacklist.
> Stop Time-Wasting Calls – Block nuisance callers, telemarketers, and spam calls that come in without caller ID.
> Protect Your Time and Focus – Avoid unnecessary interruptions during your working day. Focus on real customers, not blank calls.
> Maintain a Professional Phone Line – Your business deserves quality interactions. Filtering anonymous calls shows you value professionalism and accountability.
> Reduce Missed Leads or Distractions – Hidden calls can be disruptive and unproductive. Only take the calls that are likely to be genuine.
> Completely Automated – Once enabled, it works in the background—no manual setup, filtering, or app required.
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We are 100% UK based, our head office is Plymouth in Devon.
We’ll do everything for you and even show you how to make changes to your number to get the best solution for your business.
Absolutely! you can move your telephone number to Tamar and take advantage of our amazing tariffs and business boosting features.
Absolutely none.
No. Just give us 30 days notice.
There isn’t one. We believe in honest telecoms for everyone. Take a look at what our customers are saying.
Here’s some of our most frequently asked questions. If you can’t find the answer you’re looking for, please call us on 0800 772 0000
Tamar Mobile Landlines come with HUNDREDS of different feature combinations to take your business further.
Set your working hours, send calls to custom branded voicemail, have your business number call multiple devices and even activate Holiday Mode… All completely free with every Mobile Landline!
