hello,
i'm testing the feature of TEAMS with DDNS domain.
in the admin portal, when add the domain, it is request to add 2 CNAME and 2 SRV record.
About CNAME no problem, but the SRV , still the portal M365 to not identify it. With a tool nettwrok, i see resolve the two service correctly, so i suppose to not configure something in right way.

The portal M365 ask me to configure two SRV record:
SRV1
service _sip
protocol _tls
port 443
weight 1
priority 100
TTL 3600
name epygisbcitancia
target sipdir.online.lync.com

on my domain dynu ddnsfree.com i've configurated
node name empty
Type SRV
TTL 3600
Priority 100
weight 1
port 443
target sipdir.online.lync.com

SRV2
service _sipfederationtls
protocol _tcp
port 5061
weight 1
priority 100
TTL 3600
name epygisbcitancia
target sipfed.online.lync.com

on my domain dynu ddnsfree.com i've configurated
node name empty
Type SRV
TTL 3600
Priority 100
weight 1
port 5061
target sipfed.online.lync.com

but when i test on my portal M365, i've back an error where doesn't say this two SRV record.

Where i wrong?
thanks for your support