If you don't have static IP address, you want to connect home from the remote-site that has static IP address. You had better use reverse tunnel

Reverse Tunnel

#!/bin/sh

# ssh version
# ssh parameters
# -N : Do not execute a remote command.  This is useful for just forwarding ports (protocol version 2 only).
# -f : Requests ssh to go to background just before command execution.
# -R [port]:[host]:[host-port] : Specifies that the given port on the remote (server) host is to be forwarded to the given host and port on the local side.

# Example :
# ssh -NfR [remote port]:[localhost]:[localhost-port] user@remote.com
# I have a vm, and its ssh service listen on 22 port.
# I want to forward a connection from remote:9527 to the vm.
#ssh -NfR 9527:localhost:22 user@remote.com

# Then, you can go to the remote server
#ssh user@remote

# You can ssh localhost from the [remote port] on the remote server
#ssh -p 9527 user@localhost