On 06.06.21 at 22:19 Joshua C. Colp wrote:
On Sun, Jun 6, 2021 at 3:57 PM Michael Maier <m1278...@mailbox.org> wrote:
Hello!
Using Asterisk 18.4 / pjisp, timers are advertised as supported though
disabled in config with timers=no.
This does not happen initially (during the Invite sequence) but later on
in 200 Ok as answer to a reInvite or as the answer to an Update methode.
Is there any reason why it's suddenly activated later on though it's
deactivated? From my point of view, this smells like a bug.
It'd be a bug in PJSIP itself, probably in the INVITE session[1] code as
that is what responsible for this.
Thanks for your hint!
They are using a function to clean up the supported header
(cleanup_allow_sup_hdr).
Let's take a look at the creation of the 200 Ok answer of the received update -
I could find this path (there is no SDP in the received Update):
inv_respond_incoming_update
pjsip_dlg_create_response
pjsip_endpt_create_response
pjsip_msg_create
pj_list_init
pjsip_timer_update_resp
pjsip_dlg_send_response
If I didn't oversee anything, I couldn't find the usage of
cleanup_allow_sup_hdr - but I couldn't find either where the supported header
should have been added. Do you have an idea?
Greetings
Micahel
[1]
https://github.com/pjsip/pjproject/blob/master/pjsip/src/pjsip-ua/sip_inv.c#L1819
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