Next gen

[sunspark]

If MiCollab PC Client 9.1 is an example of "next gen", then yes it works fine with Letsencrypt certs.

Yes , all softphone after 7.3 are considered as a next gen.

with lets encrypt cert + fqdn  micollab.mycompagny.com it's sure that it will work, this is what i'm trying to exeNEPhoneGuy

[sunspark]

FWIW, you will never get a certificate from Let's encrypt for the name host.domain.local, might be added as a SAN yo a true FQDN, never tried it. Think it is bad practise to use anything less that a true FQDN when installing MiCollab or MBG with web proxy

i agree , but let encrypt cert + fqdn micollab.mycompagny.com and without MBG it will work in lan mode only.

[johnp]

Yes it should work, might need to make port 80 open for the certificate fro Let's Encrypt

[sunspark]

Yes it should work, might need to make port 80 open for the certificate fro Let's Encrypt

Thank you for your advice

[billbry66]

get the customer to create an internal ssl cert for it using the domain CA
generate a csr and put the server name in the alternate name filed ( will create a cert with the name listed twice)

then install the domain ca cert into the certificate authority trust
once thats done the internally created cert should install