Yealink visitor preview before picking up the phone

[Len]

I can do this with diaplplan for single phone. Has anyone done for ring group? Seems when enabling preview, Yealink send back additional invite from phone to door phone. Perhaps will need to setup conference ?

 

[NoFate]

Hi, looking for same thing...
I have an hikvision intercom, if I call a sip client , i see early media (video) but when I call a group, I dont see early video on sip clients...

Did you manage?

 

[bdmonsey]

I can do this with diaplplan for single phone. Has anyone done for ring group? Seems when enabling preview, Yealink send back additional invite from phone to door phone. Perhaps will need to setup conference ?

Did you figure this out?

 

[NoFate]

Nope, not yet

 

[bdmonsey]

The question is is it on the yealink side or fusionpbx side? Because I do see settings on the yealjnk side video settings.

 

[NoFate]

Must be on fusion side, we need to enable somewhere early media in groups...

I use hikvision hardware, nothing to change there either

 

[Len]

there are two parts here. 1 to get the option of preview in the first place. 2 - get the auto preview to work on the groups. for 1 enable early media on groups should do it (check the lua script) for 2, that is not enough as the phone gets configured to reinvite only one caller. This is where conference comes in.

 

[NoFate]

Hey @Len i have early media (video) when I call single sip users... But when I call a group, i dont see early video...

What needs to be changed on the script then to enable early media on ring groups?

Thnx!!!

 

[NoFate]

@Len , still around? can you give us a hand here?
thnx!

 

[Len]

TBH, Yealink implemented the feature via work around method. We have no way to rewrite the feature on the phone side. The only way to maybe get this to work would be to write a script / dialplan that would emulate what the phones are expecting. I have put this on hold for now.

 

[NoFate]

hi @Len
ah ok, you dont have the script yet ? damn, cant find anyone who have it working
not on asterisk not on fusionpbx side ....

dont get it why this feature doesnt exist

 

[NoFate]

how did yealink do this with workaround?

 

[bdmonsey]

I actually got this to work yesterday, I will write you soon exactly how I did it.

 

[NoFate]

Huh? Early video on ring groups??? Would be awesome!! Was it by modifying script?

Thnx @bdmonsey !!

 

[NoFate]

I don't use yealink, but other hardware, so I hope it was a fusion setting

 

[bdmonsey]

I don't use yealink, but other hardware, so I hope it was a fusion setting

yea it was.

 

[Len]

Got it working as auto preview on ring groups?

 

[bdmonsey]

/usr/share/freeswitch/scripts/app/ring_groups/index.lua

find all the places it says ignore_early_media=true and change them to false
what i also did on the yealink side I updated the firmware, I configured door phone settings as seen below

 

[bdmonsey]

Got it working as auto preview on ring groups?

yup

 

[Len]

what is the downside disabling ignore_early_media ?