Ofcom CLI rules can lead to surcharges on calls terminating in the UK. As part of their attempt to reduce spam and telecoms fraud from 1st August 2021 regulator Ofcom introduced new origin-based surcharges for internationally originated calls to UK geographic (starting 01/08/21) or mobile numbers (starting 01/09/2021).
Surcharges have to be applied where a CLI is missing, corrupt, malformed or unknown. Pre-defined charge bands apply based on destination (UK mobile/fixed) and vary by source country code and can be as high as £2 per minute.
CLI Validation Service stops these calls from happening
By using the Netaxis CLI Validation Service Providers in the UK can prevent calls that would attract a surcharge from being completed. The service rejects calls with missing, corrupt, malformed or unknown CLIs and using a tabular lookup applies the relevant charge band for allowable calls. Block invalid CLIs!
Other Applications include ensuring Ofcom General Conditions are met and avoidance of surcharges to the EEA
Whilst the charging element is only for calls to the UK there are two other areas that are of real interest to UK based telcos:
Any call that has a UK CLI that traverses the PSTN SHOULD (as per the Ofcom General Conditions) have a valid Number regardless of where the call is terminating,CLI As A Service helps providers to ensure that they are compliant.
For international terminating calls the same system could be used. For example you may have some great EEA rates from one carrier but don’t currently use them because the EEA has origin based charging. In this case if you send a NON EEA CLI then it attracts surcharges. Here again the CLI As A Service adds value.
Who should use this service
This service is relevant for:
UK based retail Service Providers
Users of open source equipment or providers with a basic setup with limited control over CLI manipulation and presentation
How does it work?
When you ask SRE to check the CLI, it performs different tasks:
For a UK based CLI, it will verify that it is valid by referencing Ofcom assigned official number ranges. A failure in this verification will cause the call to be rejected (configurable).
For a Non-UK based CLI, it will match the CLI against a list of surcharge bands, each of which has a different surcharge price per minute, per destination (UK geo vs. UK mob). You can define on a customer by customer basis allowable CLI bands.
Surcharge Bands are pre-defined in SRE based on the latest data we get from carriers, but can be overwritten to suit.
CLI As A Service is built on the Netaxis cloud based SRE As A Service and can be turned on very quickly. Onboarding is straightforward:
Joint VPN setup
Optional customisation of default logic and charge band definition, based on your specific needs (or just use our standard template)
Definition of how your customers are identified in the SIP signaling and the type of network responses they need in the two cases:
a) call can proceed,
b) call must be rejected.
Netaxis provides you with access to your own GUI and (optionally) API definition
You switch calls to the cloud SRE – this can be phased
You control your usage of the Service on the GUI and pay for it monthly via Stripe.
How much does it cost?
Pricing is simple.
Initial onboarding for testing/Proof of Concept is free.
Once you decide to go ahead – this is currently being waived for all new customers in Q4 2021
Per CLI Lookup
There is no contract term. You can scale up or down as often as you like and stop using the service at any time.
Sign up or enquire
Enter your details below to enquire about our CLI validation service. This is a Netaxis service developed to help you meet Ofcom rules.
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