[Freeswitch-users] No ring-back with 180 ringing and P-Early-Media tag

[Victor Chukalovskiy]

Hello,

Can FreeSWITCH be configured not to include P-Early-Media tag in it's 
180 ringing? Is any of the boxes involved breaking the specs?

Call scenario is that far-end SBC sends INVITE to FS with 
/P-Early-Media: supported/ tag.
Freeswitch routes call and replies with 180 Ringing with /P-Early-Media: 
sendonly/ tag to the far-end SBC.

Far-end does not generate ringback when it sees P-Early-Media: sendonly. 
Freswitch does not provide in-band ring-back either (cause it's just 180 
Ringing without SDP).

Last but not least, FreeSWITCH runs in bypass media mode.

Thank you,
Victor
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