Hi, By default, `100 Trying` is sent only once `t_relay()` is called and the transaction is created. If you do go the route of sending your own 100 message (so that retransmissions and timeouts can be held down during the pendency of the query), you can override this behaviour:
https://kamailio.org/docs/modules/5.6.x/modules/tm.html#tm.f.t_set_auto_inv_100 -- Alex > On May 23, 2023, at 4:54 AM, Benoit Panizzon <[email protected]> wrote: > > Hi gang > > In 2024, Switzerland will start using NG112 (NG911) procedures to > transmit the caller location via Geolocation URL via LIS Server to a > PSAP. > > So time to start testing this on my devel plattform. Kamailio ships > with the lost module which looks promising. > > In short, the Procedure is as follows: > > Customer calls emergency number. > > Kamailio performs a http request to our inhouse HELD server with the > identification of the calling customer. > > HELD server looks up the location of the caller and pushes a HELD XML > object to the Swiss LIS Server, which then is queried by the emergency > PSAP receiving the call. LIS server return and URL. > > HELD server returns the URL to Kamailio. > > Kamailio adds Geolocation Header with that URL and relays the call. > > This takes some time and as the call is not yet being relayed while > waiting for the held request to complete, there is no 100 trying being > sent and the emergency call is bound to time out. > > So, shall I call t_reply("100","Performing HELD lkup") before > calling the lost module? Or is there a better way? > > Mit freundlichen Grüssen > > -Benoît Panizzon- > -- > I m p r o W a r e A G - Leiter Commerce Kunden > ______________________________________________________ > > Zurlindenstrasse 29 Tel +41 61 826 93 00 > CH-4133 Pratteln Fax +41 61 826 93 01 > Schweiz Web http://www.imp.ch > ______________________________________________________ > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions > To unsubscribe send an email to [email protected] > Important: keep the mailing list in the recipients, do not reply only to the > sender! > Edit mailing list options or unsubscribe: -- Alex Balashov Principal Consultant Evariste Systems LLC Web: https://evaristesys.com Tel: +1-706-510-6800 __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to [email protected] Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
