yes
there are two exams
one is c voice exam #640647
this is voice over frame relay
voice over atm
voice over ip
these combine to one exam #640 647
other one is cipt #9e0-569
this is cisco ip telephony
this is about call managers gate ways gate keepers protocols like h323 245 225 ip rtp udp sip skinny and a whole lot ciscos routers 1750,2600,3600,5310,7200 800series,4000,6000,switches