Local regulations

• No call centre traffic is allowed

• No aggressive dialer traffic is allowed

• No in-country (+61 A-number) traffic is allowed

• Sending calls with the above traffic profile might result in rate increases or a block on the particular destination

The 078 range is considered a non-geographic number, although priced the same as a local geographic number. In Belgium it is not allowed to present non-geographic numbers as CLI, so 078 cannot be presented as CLI.

Article 19 governs when number capacity is granted "allocated" status. This allocation only remains valid if all conditions are met cumulatively — including that the CLI sent with a call must match the number assigned to the end user's line. This exists to guarantee CLI authenticity; since 0800 numbers, premium numbers, and national short numbers never originate calls, they cannot be presented as the calling line number.

Article 43: geographic national E.164 numbers are allocated for services with geographic significance, and may only be assigned to end users whose connection is physically located within that number zone. Calls to a geographic number must terminate at the end user's network termination point (unless forwarded, or used nomadically). Moving outside the number zone does not allow registering the number at the new address — the geographic tie to the zone must be maintained.

More information: Article 19 source · Article 43 source · BIPT — Royal Decree & Do Not Originate list · BIPT June 2026 clarification (explainer)

• No call centre traffic is allowed

• No aggressive dialer traffic is allowed

• No in-country (+86 A-number) traffic is allowed

• No wholesale traffic is allowed

• Sending calls with the above traffic profile might result in rate increases and a direct block on the destination

Geographical number regulation (active from January 2023): a regulatory change affects number requests — carriers may only sell numbers they own to direct customers, and resellers are no longer allowed to resell numbers to end customers. CM.com is applying to become a registered operator to acquire its own number ranges (worth confirming current status internally). More information: Arcep — dégéographisation des numéros.

Anti-spam measures (previous, still in effect): since 1 August 2019, French regulator Arcep introduced rules to protect end users from spam and robo-calls:

• Since August 2019: geographic numbers (01–05) or multi-purpose numbers (09) may not be used as caller ID for international calls/messages when no authentication mechanism is in place

• Since January 2021: automated systems that place/forward more calls than they receive may not use geographic (01–05), mobile (06–07), or multi-purpose (09) numbers as caller ID

Calls to French destinations using a French fixed geographic A-number may still work, but since 1 February 2020 such calls may be blocked; custom routing is evaluated case by case. More information: Arcep regulation.

Sources: Arcep — Numbering Plan press release · Bird & Bird — France 2026 priorities

• No call centre traffic is allowed

• No aggressive dialer traffic is allowed

• No in-country (+852 A-number) traffic is allowed

• Sending calls with the above traffic profile might result in rate increases or a block on the particular destination

In complying with the Italian regulator's (AGCOM) request to stem inbound international calls to Italian fixed destinations carrying a spoofed Italian number as CLI, carriers must conform to Resolution No. 106/25/CONS (approved 30 April 2025), implemented in phases:

• Since 19 August 2025: calls with a CLI corresponding to a national landline number, or a non-geographic national number (e.g. 800xxx numbers), are blocked — these numbers cannot legitimately originate from, or be used, abroad

• Since 19 November 2025: the same blocking extends to calls presenting a spoofed Italian mobile number as CLI

• Since a further AGCOM resolution passed 6 November 2025: blocking also extends to specialised mobile/personal-service numbers (e.g. satellite, M2M) and to roaming calls from mobile operators that haven't yet implemented roaming verification

Sources: AGCOM regulation overview (MEF) · Mobile-CLI phase (FIRSTonline)

• In-country calls (+81 A-number) will be anonymized — the A-number is randomized or hidden

• Auto-generated (robo) calls are not allowed

• Sending calls with the above traffic profile might result in rate increases or a block on the particular destination

• Geographic telephone numbers are bound to network connection points in the area code associated with the number (e.g. 076 – Breda area)

• These numbers may be used outside their area code if the subscriber has a residence or place of business ("binding") within the associated area code area

• Number holders are responsible for correct number use

• A telecom provider (as the number holder of a geographic number series) must ensure that a subscriber using or porting a geographic number actually has a connection to that area code area

• This responsibility also applies if the number holder passes the numbers assigned to it to another provider

• No call centre traffic is allowed

• No aggressive dialer traffic is allowed

• No in-country (+64 A-number) traffic is allowed

• Sending calls with the above traffic profile might result in rate increases or a block on the particular destination

Voice traffic routed via international SIP trunks to Singapore destinations (+65) with a Singapore CLI/Caller ID (+65) will be filtered or blocked by local operators and carriers — calls might succeed, but service delivery cannot be guaranteed.

International CLIs work as expected and are delivered without being filtered, per agreement with local operators and wholesale suppliers. All other Voice call features should work as expected.

A reduced rate may apply to calls to South Africa (+27) if the following are met:

• The company sending the calls is registered in South Africa and can provide proof of this

• The A-number (CLI) sent with outbound calls is hosted at CM.com

• Calls must originate in South Africa — no CLI manipulation is allowed

• Not adhering to these rules may result in unreliable call quality and a penalty surcharge of €0.15/minute

• For more information, contact CM Support ([email protected])

Requirements to use Wanatel (ZA carrier):

• Wholesale VoIP clients must have offices in ZA (provable) with RICA documentation, and must ensure their end clients also have ZA offices and RICA documentation

• Must obtain a DID from Wanatel and use it only for outbound calls on that carrier — it cannot be reused on other carriers terminating into ZA

• Customer must provide RICA documentation: proof of ZA address (less than 3 months old), copy of ID, company registration number, and letter of authority/affidavit confirming the company representative

Requirements to use Vox (ZA carrier): same requirements as above, with the DID obtained from Vox instead.

Starting 7 June 2025, it is no longer possible to terminate outbound calls to Spain if the Caller ID (CLI) is a Spanish mobile number. This follows Order TDF/149/2025, which prohibits mobile-format CLIs for commercial or customer-service purposes without the recipient's explicit consent.

To stay compliant and avoid service disruption, use a Spanish geographical number as CLI.

Sources: Prefix 400 explainer (Sinologic) · Bird & Bird — Spain 2026 priorities

• Voice traffic sent to Turkey (+90) with a Turkish CLI/Caller ID (+90) will be filtered or blocked by local operators and carriers

• International CLIs work as expected and are delivered without being filtered, per agreement with local operators and suppliers. All other Voice call features should work as expected

• In-country calls (+971 A-number) are officially not supported — such calls will result in occasional quality issues, such as dropped packets, faulty CLIs, and audio loops

• Sending calls with the above traffic profile might result in rate increases or a block on the particular destination

Ofcom requires providers to block or otherwise disrupt inbound international calls that present a UK number as the Presentation Number, per CLI guidance built on NICC ND1447. The original 2021-era version of ND1447 blocked on the "Network Number" and treated the +447 mobile range as an unconditional exception — that is no longer the current position.

Under the guidance in force since 29 January 2025 (published 29 July 2024):

• Blocking is based on the Presentation Number, a broader basis than the original Network Number test

• The +447 mobile exception is now conditional, not blanket: it covers genuine roaming UK customers, traffic the provider can demonstrate originated on a UK network before being routed abroad and back, and traffic from a UK customer that started on a non-UK network — not every call presenting a +447 CLI

• Calls to Mobile Station Roaming Number (MSRN) / International Roaming Number (IRN) destination ranges remain excluded from blocking, so calls from UK numbers to overseas customers roaming in the UK are not blocked

Sources: CLI regulation in the UK — overview · Ofcom — Tackling scam calls statement