Vodacom iPhone 4s dropped calls

[SphereZA]

Has anybody else had this issue on the VC network ? ( 3x sim swops and 4x iphone4s ) & still getting dropped calls. My girlfriend as had Her iphone4s for 1day and already had 4 dropped calls (Nokia Lumia 800 ZERO dropped calls).

Thanks

*Edit
Both phones have been upgraded to iOS 5.1

[Ockie]

Try setting it to 2G Only network mode.

[Mbuzi]

Try setting it to 2G Only network mode.

^this
Settings>General>Network> Enable 3G Off

[dlevine]

on voda with 4s. No dropped calls at all. Mainly take calls in sandton area. Very happy with phone