Setting Site Specific Option Number (SSON)

Last Updated : Apr 17, 2026 |
Prolog information
Metadata
Keywords:
The Site Specific Option Number (SSON) is used by the phones to request information from a DHCP server. This number must match a similar number option set on the DHCP server. The number option set on the DHCP server defines the various settings required by the phone.
  1. Press Main MenuAdministration.
  2. In the Access code field, enter the administration menu password.
  3. Press Enter.
  4. Select SSON.
  5. In the SSON field, enter the new SSON.
    ADDITIONAL INFORMATION:
    The number must be between 128 to 254.
  6. Press Save.
    Caution:
    Do not perform this procedure if you are using static addressing. Perform this procedure if you are using DHCP addressing and the DHCP option number is changed from the default number.
Related information
Configuring the phone using Administration menu
Accessing the Admin menu after log in