Just came back from a business trip to PE. The best coffee & free Wi-Fi combo in Port Elizabeth (Gqeberha) is at a restaurant called Tapas - https://www.facebook.com/TapasPE
If you an Axxess Fibre or ADSL client, I think you get a free VoIP number and R50 call credits each month. If not then their normal offering is just as good. Plus comes with 3 month VoIP credit rollover.
https://www.axxess.co.za/voip/calltime
Axxess offer a data only SIM and I think the AirMobile SIM accounts include voice and SMS's. But I agree, if it's data only then Axxess is the way to go.
I have not used the Huawei router that you mentioned but for the past 6 months have had no problems with the ZTE MF286C. It's also LTE DL 4*4 MIMO and 2*2 MIMO on WiFi:
https://www.axxess.co.za/shop/category=mobile&price=899%2C2499&sort=lowhigh&pid=105856&subcat=607
Just got an email from Axxess about their new Telkom Uncapped LTE SIM's. The Business one looks like a good fit for me. Will be getting one to try out.
https://www.axxess.co.za/mobile/telkom-lte
I would say go with Axxess. My personal fav!! - https://www.axxess.co.za/fibre/uncapped
But anyone of the following 3 are good:
Axxess
Afrihost
Cool Ideas
Telkom LTE (SIM Only): R199 for 30GB + 30GB @ https://www.axxess.co.za/mobile/telkom-lte
MTN LTE (SIM Only): R199 for 30GB + 30GB @ https://www.axxess.co.za/mobile/mtn-fixed-lte
The main difference that I have found between the 2 is that the Telkom LTE SIM is more mobile and can be used in a...