A number of companies offer broadband alternatives. Iburst offer their namesake, while cellular network company Cell C offer GPRS and EDGE and more recently a 21.1 Mbit/s service. MTN and Vodacom also offer 3G with up to 21.1 Mbit/s HSDPA+. Telkom offers a 7.2/2.4 Mbit/s HSDPA/HSUPA service in Gauteng. Most of these offerings are more expensive than ADSL for mid-to-high usage, but can be cost effective if low usage is required. MTN triggered a price war in late February 2007, offering 2 GB for each 1 GB bought, with Iburst giving a small "data bonus" to their contract customers and Sentech also reducing their prices. Vodacom responded with dramatic price cuts of their own on 1 April 2007, after which Cell C reduced prices on their larger offerings to undercut both MTN and Vodacom.