[SR-Users] Keepalive dialog with SIP/TLS OPTIONS

Denys Pozniak denys.pozniak at gmail.com
Thu Sep 29 15:18:55 CEST 2022


In order to keep the SIP/TCP connection alive for some specific clients
(more precisely, specific firewalls) in long calls, I use periodic SIP
OPTIONS probes through the dialog module.
I noticed that when subscribers are using the SIP/TLS protocol, such
keepalives are not sent (with SIP/UDP and SIP/TCP working well).
I did not detect any obvious errors in the debug mode.

Are there any ideas why the messages are not being sent for SIP/TLS leg?

loadmodule "dialog.so"
modparam("dialog", "db_url", "DBURL")
modparam("dialog", "db_mode", 1)
modparam("dialog", "ka_timer", 5)
modparam("dialog", "ka_interval", 30)
modparam("dialog", "ka_failed_limit", 2)
modparam("dialog", "send_bye", 1)
modparam("dialog", "track_cseq_updates", 1)
modparam("dialog", "default_timeout", 7205)


Denys Pozniak
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