What hardware will I need for the Cisco IP communications express cert ?

Hi My Company a Cisco premier partner has asked me to self study tobtain the
"Cisco IP communications express" certification I said ok no problem I'll
give it a go (I have little VoIP experience). I have purchased the Cisco
press book for this and my company are willing to purchase some hardware.
2800 router? My question is what modules / options will I need for the
router to do this and if I decide to proceed onto the CCVP afterward will
the 2800 hardware be relevant for any of the CCVP certifications?



Many thanks for your comments.