South Africa is an extremely complex sms market and numerous filters are in place. A large amount of messages are being blocked and so Nexmo uses a direct connection to get around this heavy filtering and ensure messages are delivered!
This is a fully featured route and handset delivery receipts are supported, as is delivery to ported numbers. Unicode and binary messages are supported. Sender ID is changed to a local South African number in order to ensure delivery. No religious, political or adult content is allowed.
2-Way Reach Limitation
Due to local agreements, to receive SMS on your long virtual number, you will first need to send to the recipient from the long virtual number. This is a one-for-one system only. You will not be able to receive SMS from numbers you have not sent to, and they will be dropped by the local network.
Local Reach - Yes (except 8ta/telcom mobile)
International Reach - No
SMS only - Yes
Voice only - Yes
SMS & Voice - No
Available via API - Yes