I m  writing exam 650-195 how much i hv to score to pass and plz help me

i have configure fax to email but it doesnt work with megive ur sugguestion asap thx wait for u replysyour heart friend or bro

i have change uc 520 config-register 0x2101 after i couldnt connect to router uc please help show me step how to set again in normalconfig-register 0x2102

i have configure vpn router 877 to uc500. i have done everthing accroding to vpn process.final it not ping if u have any details plz send with full information as your friend waiting for ur reply