CRBT — Call Ring Back Tone platform
Call Ring Back Tone (CRBT) turns the moment before a call connects into a personalized, monetizable experience — and a dependable recurring revenue stream for operators.
What is CRBT?
CRBT, short for Call Ring Back Tone, replaces the standard ringing sound a caller hears with music, soundtracks, nasheeds, or a personal message chosen by the subscriber being called. Instead of a plain tone, every incoming call becomes a branded, personal moment.
MBT designs, deploys, and operates the full CRBT platform for mobile network operators — content management, subscriber provisioning, billing integration, and a large, continuously refreshed content catalogue. Operators launch a premium subscriber service without building or maintaining the infrastructure in-house.
How CRBT works
- 01
Subscribe
A subscriber sets a CRBT via USSD, SMS, app, or IVR, choosing from a catalogue of music, nasheeds, and messages.
- 02
Assign
The chosen tone is attached to the subscriber’s number on the CRBT platform and can be scheduled or set per-caller.
- 03
Play
When anyone calls that number, the platform plays the selected tone in place of the standard ringing signal.
- 04
Bill
Charges are applied through the operator’s billing system on a daily, weekly, or monthly basis, generating recurring revenue.
Key features
Large content catalogue
Music, nasheeds, soundtracks, and voice messages, refreshed regularly to keep subscribers engaged.
Multiple set channels
Subscribers manage tones over USSD, SMS, IVR, web, and app for maximum reach across device types.
Flexible billing
Daily, weekly, and monthly subscription models integrated with operator charging.
Copy-tone virality
Callers can buy the tone they just heard, turning every call into an acquisition channel.
Operated end-to-end
MBT runs content, provisioning, and support so operator teams stay lean.
Business impact
- Opens a recurring, opt-in revenue stream from existing subscribers.
- Increases engagement and personalization without new hardware for the subscriber.
- Viral copy-tone mechanics drive organic subscriber growth.
- Fully managed by MBT — fast launch, low operational overhead.
CRBT — frequently asked questions
What is CRBT (Call Ring Back Tone)?
CRBT is a telecom service that replaces the standard ringing sound a caller hears with music, a nasheed, a soundtrack, or a personal message chosen by the person being called. It personalizes incoming calls and creates a value-added revenue stream for mobile operators.
How does a subscriber set a CRBT?
Subscribers can set or change their Call Ring Back Tone through USSD, SMS, an app, IVR, or the web, selecting from MBT’s content catalogue of music, nasheeds, and messages.
How does CRBT generate revenue for operators?
CRBT is billed as a daily, weekly, or monthly subscription through the operator’s charging system. On a network of one million subscribers, MBT’s CRBT platform generates on average +7.5m AFN per month.
Does MBT operate the CRBT platform end to end?
Yes. MBT provides the content catalogue, subscriber provisioning, billing integration, and ongoing operations, so the operator launches a premium service without building it in-house.
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