# &faqguide;

What happened with topology_hiding() function?

The respective functionality was moved into the topology_hiding module. Function prototype has remained the same.

What happened with use_tight_match parameter?

The parameter was removed with version 1.3 as the option of tight matching became mandatory and not configurable. Now, the tight matching is done all the time (when using DID matching).

What happened with bye_on_timeout_flag parameter?

The parameter was removed in a dialog module parameter restructuring. To keep the bye on timeout behavior, you need to provide a "B" string parameter to the create_dialog() function.

What happened with dlg_flag parameter?

The parameter is considered obsolete. The only way to create a dialog is to call the create_dialog() function

Where can I find more about OpenSIPS?

Take a look at &osipshomelink;.

Where can I post a question about this module?

First at all check if your question was already answered on one of our mailing lists:

- User Mailing List - &osipsuserslink;

- Developer Mailing List - &osipsdevlink;

E-mails regarding any stable &osips; release should be sent to &osipsusersmail; and e-mails regarding development versions should be sent to &osipsdevmail;.

If you want to keep the mail private, send it to &osipshelpmail;.

How can I report a bug?

Please follow the guidelines provided at: &osipsbugslink;.