I need to build a $3-$teir network in packet tracer. With $4$ routers, one router is the call manager and $3$ branch routers. $1$ switch per branch router. $2$ voip phones per switch. $2$ computers per switch. $2$ vlans per switch one for data and one for voice. One pc will be directly connected to a voip phone. I beed to pull dhcp from a server dhcp pools. I use CCR$($control center router$),$ BranchA, BranchB, and HQ$.$ For brancha IP $10\mathrm{.}10\mathrm{.}1\mathrm{.}1255\mathrm{.}255\mathrm{.}255\mathrm{.}0,$ for branch b $20\mathrm{.}20\mathrm{.}1\mathrm{.}1255\mathrm{.}255\mathrm{.}255\mathrm{.}0,$HQ $30\mathrm{.}30\mathrm{.}1\mathrm{.}1255\mathrm{.}255\mathrm{.}255\mathrm{.}0,$ swrver $50\mathrm{.}50\mathrm{.}50\mathrm{.}1255\mathrm{.}255\mathrm{.}255\mathrm{.}0.$ I need OSPF routing, pull from server dhcp pool, telephony$-$services, dial$-$peer. I cannot figure out what i am doing wrong please help asap. All i need to do is call across networks with the voip phones