SIP header collector
The SIP INVITE is fundamental to every SIP phone call, as it is the initial request message sent out by the caller inviting the intended recipient for a session. These invites are made up of SIP headers used to identify the source and destination, among other various forms of information.
However, the various values of these SIP headers, such as user names, IP and email addresses, is not what is relevant. FortiVoice, through the use of the SIP header collector, simply parses the names of the SIP headers themselves in order to pass along identifying information of a caller for inter-PBX communication.
For example, one PBX may be located in Ottawa, and another PBX located in Vancouver, both responsible for your company's support services. A customer calls into the Ottawa call center, and their identifying information is retrieved by the Ottawa PBX. If the call must then be transferred over to the Vancouver PBX, that identifying information is transmitted to the Vancouver PBX thanks to the SIP collector. This helps the customer avoid having to provide their identifying information again.
The SIP collector can furthermore make use of SIP header variables, allowing certain information to be appended to the agent console, the SIP header of the call being transferred between PBX systems, to remote CDR databases, and to IVR reports.