Proxy translates between the JetSend protocol and non-JetSend protocols. This includes converting JetSend e-material data types to data types appropriate for a given proxy. The sender must also pass the ultimate destination address to the proxy. This is known as the alias address and is specific to a given type of proxy. For example, a fax proxy will require a Fax number to be passed as the alias address.
Proxies can also broadcast their presence to devices on their local sub-net.
The HP JetSend Fax Proxy serves as a link between the JetSend communications network and the fax communications network. Such a scenario would require the sender to know the JetSend address of the Fax Proxy. This would allow sending a fax document across the Internet to a remote JetSend Fax proxy for local fax transmission. First the sending appliance broadcasts for the fax proxy. Once the session is established, then sending appliances dumps the Jetsend job to Fax proxy and ends the session.