Africa

SIP Trunk South Africa — +27 Termination & DID Numbers

Cape Town and Durban are established offshore BPO destinations for UK and Australian brands, with neutral English accents and convenient time zones. Besides geographic codes, South Africa has 087 non-geographic VoIP numbers, which are a common choice for distributed teams.

Get South Africa rates Talk to NOC

Overview

Routing calls to South Africa

Whether you are calling a desk phone in Johannesburg or a mobile in Durban, Pretoria and Gqeberha, the call is routed by the longest matching +27 prefix and sent to the best-performing carrier for that range. When a carrier fails, the next one takes over, and the CDR shows exactly which leg carried the call.

Inside the country, numbers are dialled with a 0 trunk prefix. Strip it before you send the call, and send 27 followed by the national number. On the rate sheet, South Africa is split into geographic, national, mobile and toll-free prefixes, following the plan set by ICASA, so your LCR can tell a cheap fixed-line call from a pricier mobile one.

Outbound termination to South Africa starts as soon as your balance is topped up. Local DIDs are different: ICASA rules usually require address and identity documents, which our team collects and checks before activation.

What you get

What you get in South Africa

One account and one balance, with the same SBCs for termination and inbound numbers.

CLI route tier
Caller ID delivered end to end on +27 calls. Use it for sales, support and any traffic where answer rates matter.
Non-CLI route tier
A lower-cost tier where caller ID delivery is not guaranteed. Suitable for internal or transactional traffic that does not depend on the CLI.
Number types
Geographic, National, Mobile, Toll-free. DID availability varies by range and city.
Codecs
G.711a/u and G.729 on every route, G.722 and Opus where the far end supports them. T.38 for fax.
Channels on demand
Concurrent call limits are set per account and raised as your traffic grows. No fixed channel bundles.
Multi-carrier failover
Every +27 prefix is mapped to more than one carrier. Failed attempts move to the next one automatically.

Number formats

How to dial South Africa from your PBX

Send E.164 digits. The sample number below shows the format only.

South Africa number formats
Format	Example	Notes
International (E.164)	+27 21 123 4567	How the number is written and stored.
Sent from your PBX	27211234567	E.164 digits with no plus, prefixed by your tech prefix if your account uses one.
With 00 exit code	00 27 21 123 4567	Accepted on the trunk. We normalise it to E.164.
National format	021 123 4567	Dialled inside South Africa. Strip the trunk prefix before sending.

Compliance

South Africa rules to know

What applies before your first call or your first DID goes live.

Compliance box

Regulator: ICASA
Caller ID: A valid CLI that you are entitled to use is required on CLI routes. Spoofed or unallocated numbers are blocked.
DID KYC: Usually required

Rules change — our team confirms current requirements before activation.

Use cases

Who uses South Africa routes

01
Offshore contact centres in Cape Town and Durban serving UK and Australian customers
02
087 VoIP numbers for businesses with staff spread across the country
03
0800 toll-free lines for retail and insurance

Setup

Start calling South Africa in 3 steps

01
Top up $200
Open a prepaid account and add balance by USDT (TRC20), BTC or card.
02
Add your trunk
Whitelist your PBX IP or create digest credentials, then point your outbound route at our SBC.
03
Dial +27
Send 27 + national number in E.164 and check the CDR for your first test call.