I need to design an IP telephony network,VOIP and video conferencing.
This network is for a bank that has Head Office and five branches,in each branch there will be a PBX for telephone lines,The IP phones in head Office will be around 200 and in each branch there will be 50 IP phones.
In head office and each branch there will be a conferencing room that will be used for video conferencing
I need to monitor,record,backup all activities in all Ip phones and Video conferencing solution.
Will someone help me with the design?
and I need to know if I had a high speed internet conection and a static public IP addresses,Can I implement calls through internet ?what is the equipments needed?