[Freeswitch-users] MS Lync / Skype For Business - MOH hangup

Miha miha at softnet.si
Thu May 5 15:21:25 MSD 2016

Hi Jay

i would also borrow this threat.
I am also integrating FS with SFB and experiencing some strange behaviour.

When other side behind SFB pickup the call I do not get 200 ok and I do 
not know why SFB does not send it. The same config with asterisk works.
@Jay do you have any special settings?


On 05/05/2016 12:56, jay binks wrote:
> Hi All,
> Im hoping that the collective experience of the FS Community might be 
> able to help with some interop fun with Skype For Business, 
> specifically where the SFB end sends a bye at around 3 min, after the 
> call has been on hold for  ( for most of that time )
> I dont see anything obvious in the signalling, but a colleague who is 
> quite experienced with Lync feels it may be related to how we are 
> handling "a=inactive" when the call is on hold.
> I cant at this point share any of these SIP traces ( mainly because 
> im yet to have this entire scenario tested in our lab ).
> I guess what Im asking is, does anyone have SFB working well with 
> Freeswitch, and have you tested long periods of silence ( pressing 
> mute in the SFB client ) and long periods of the call on hold.
> if so, can you potentially share any settings you had to tweak in 
> order to make this work.
> Sincerely
> Jay
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