I want to ssh-login to linux servers from the road in emergencies. I have a Nokia 5800 phone which runs symbian.

I downloaded this telnet/ssh client from Mochasoft <http://www.mochasoft.org/telnet60.sis> - but the phone brings up an error message telling me it does not support installation of telnet60.sis

Is there some open source ssh client for this phone or another client which is preferrably free. I would also pay if open source is not available. 

Or is there some trick to install the client from Mochasoft?

**Edit:** Now I installed the putty version for Symbian 5th edition from <http://bd.kicks-ass.net/koodaus/putty/> and I am quite happy with it. Thank you for your answers!