[randita]

Where did you see/read that they didn't have a two way radio with them?

[_Jim]

Where did you see/read that they didn't have a two way radio with them?

The only 'comms' being fessed up to are via 'cellular' telephone.

I think it would be safe to say that if the rescuers had made 'radio' contact we would a) have heard about and b) have a more certain idea of where the climbers are and c) their condition.