Hello, can you check that you are using set_contact_alias() instead of add_contact_alias()? The former should make the new contact with alias visible to a few modules and, iirc, it should be for dialog module.
Cheers, Daniel On 16.05.23 04:36, Alex Balashov wrote: > Hi, > > When I modify INVITEs with set_contact_alias() / add_contact_alias(), this is > not preserved in dialog data, and therefore not honoured in BYEs locally > generated due to dialog timeout. > > For example, if the initial INVITE contained: > > Contact: sip:[email protected] > > and, after transit, became: > > Contact: <sip:[email protected]>;alias=1.1.1.1~25844~1 > > There is no ;alias value stored in the caller dialog data, just the original > URI + parameters. > > A related problem: > > I tried to work around this by storing an alias in dialog user variables, e.g. > > $dlg_var(alternate_ct) = $_s($si~$sp~$prid) > > and in fact, I am able to recover this value later: > > event_route[tm:local-request] { > if($dlg_var(alternate_ct) ne $null) { > $ru = $ru + ";alias=" + $dlg_var(alternate_ct); > handle_ruri_alias(); > } > } > > And in fact, if I print the value of $du after calling handle_ruri_alias(), I > can see that it is modified. However, this seems to have no effect on where > the request actually goes at the network and transport level. I assume this > is because the event_route does not actually allow one to overwrite elements > of the spoofed request, and that its essential attributes have been > pre-populated elsewhere. > > Nevertheless, the effect is that these BYEs do not reach NAT'd endpoints. Any > suggestions are appreciated! > > Thanks in advance, > > -- Alex > > -- > 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: -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio World Conference - June 5-7, 2023 - www.kamailioworld.com __________________________________________________________ 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:
