Issue with sip-features for SIP tags (require)
Hi Guys,
We have a case where we are getting the following header in SIP request messages:
Require: timer
When we use “sip-features” to “pass” such tag to the other side of the SBC, we are not getting it passed to the other side but the SBC keeps rejecting the request with a “420 Bad extension” as default.
According to the manual, the request should be passed through the SBC if the configuration is as follow:
ACME-SBC# show running-config sip-feature
sip-feature
name require
realm
support-mode-inbound Pass
require-mode-inbound Pass
proxy-require-mode-inbound Pass
support-mode-outbound Pass
require-mode-outbound Pass
proxy-require-mode-outbound Pass
Now if we have a header as the following: