AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN - Manual (Page 678)

41-001343-01 Rev 03, Release 3.2.2 6-51
Reject INV or BYE when Unsupported Value in REQUIRE Header
The IP Phones support the following parameter:
•
sip enforce require hdr
This parameter allows you to enable (1) or disable (0) the rejection of an INV or BYE with a “420
Bad Extension” if the INV or BYE contains an unsupported value in the REQUIRE header.
Enabling/Disabling a Rejection of the INV or BYE
Use the following procedure to enable/disable the athe rejection of the INV or BYE if the INV or
BYE contains an unsupported value in the REQUIRE header..
Configuration Files
For the specific parameter you can set in the configuration files, see Appendix A, the section, “Rejection of
INV or BYE” on page A-249.