I am frequently being dropped off the network without being aware of it. No phone calls or sms coming in and when I send no connection is made. Speaking to MTN their suggestion is that when traffic gets heavy their servers do not cope and the only thing that I can do is to turn off for 5-10 minutes while they refresh my number on the network. I have already lost business because people phone and it goes to voicemail or else nowhere and I am unaware of the network failure. On occasions days go by without getting messages and then get old ones with new. How many others are experiencing similar problems?? It now seems to be happening to an associate who uses Cell C. What is going on. If this is the problem are the network providers doing anything about it. Does anyone have better info/ideas or am I one of a few who has this problem?