Specifications

Session Initiated Protocol
Planning and Installation Guide F – 13
• Use IP Address - Select this radio button to enter a static IP address.
This is recommended if the systems are static and will not be
changing IP addresses often.
Step 10 Enter the desired number of SIP trunks in the Number of Trunks field.
Step 11 Click the Save button to store your changes.
NOTE Callers to workgroups do not hear ringback if they call over SIP trunk.
Configure the SIP Device
SIP devices are the third-party telephones, gateways, terminal adapters, and other
devices that support the protocol. The ShoreTel phones do not currently support the
SIP protocol.
With each of the SIP devices you will be using, you will have to consult the
manufacturer's instructions for specific instructions on configuring the device.
In a general sense, the configurations for each SIP device will be essentially the same,
and will require that the following pieces of information are entered:
• IP address of the SIP server
• IP address of the SIP registrar server
• User name (identification for outbound calls)
• User information (OSE or DID)
• User password
• DTMF protocol (i.e. must support RFC 2833)