It's late negotiation from sip trace.
However I can see 183 session in progress that mean you must have "instant ring back" variable set in dialplan. You can try unsetting it.
_________________________________________________________________________Hi all,
how can I switch to late negotiation? FS 1.8, new installed, default settings!
internal.xml:
<param name=”inbound-late-negotiation” value=”true”/>default.xml (added 'inherit_codec'):
<action application="set" data="inherit_codec=true"/>Expected result: late-negotiation. Actual result: early-negotiation (see image below).
Thanks and kind regards.
Uli
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