opening port on oel 6.x

i need to open port 5555 on a server running oel 6.x, the command i used for oel 5.8 doesn't seem to work.

iptables -A INPUT -p tcp --dport 5555 -j ACCEPT
 
iptables -A OUTPUT -p tcp --dport 5555 -j ACCEPT

/etc/init.d/iptables restart

the firewall on the oel 6.x server is not on, but i cannot telnet to the server using port 5555

the services file in /etc has these entries

personal-agent  5555/tcp                # Personal Agent
personal-agent  5555/udp                # Personal Agent

an lsof -i doesn't show port 5555 in use ??