[FEATURE] Add isup part for locally generated replies

[lardht]

Dear Team,

i was asked by Răzvan to create a feature request for this possibly missing feature. Thanks for your great work!

Is your feature request related to a problem? Please describe.

There is no way to add an ISUP part to an locally generated reply. When using openSIPS as a carrier SBC, this limits functionality. (ETSI TS 101 585 SS_cug_012)

Describe the solution you'd like

sip_i module: Add a function to append a isup body to locally generated replies, like append_to_reply from sipmsgops
tm module: Change t_reply_body to accepting a non-string body

Implementation

• Component: sip_i / tm
• Type: function(sip_i)/ parameter(t_reply_body)
• Name: append_isup_to_reply / append_to_reply_isup

Describe alternatives you've considered

Calling an external script with exec, which creates SIP and ISUP from scratch
Adding a second openSIPS server just for this use case

[github-actions]

Any updates here? No progress has been made in the last 15 days, marking as stale. Will close this issue if no further updates are made in the next 30 days.