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No missed call notification or Voice mail on the
OCS Phone device (09/29/2008) |
Problem:
We have seen so many times that the customer would
not get missed call notification or voice email on the OCS Phone device. Though
Microsoft office communicator will keep receiving missed call notification. So the
missed call notification and voice emails are shown in MOC 2007 but not on OCS Phone
devices.
Reason:
There is a fundamental difference between how a
MOC receives missed call notification and how an OCS Phone device receives it.
The OCS Phone device uses Exchange 2007 web services
to get the missed call notifications and voice mails.
Resolution:
You need to ensure that the autodiscover feature
of Exchange 2007 is working fine.
Ensure that you do have an A record “autodiscover.<SMTP
DOMAIN>” pointing towards the exchange 2007 autodiscover service (Exchange 2007
CAS server).
Ensure that the CAS server is configured with a
certificate having FQDN autodiscover.<SMTP DOMAIN> in subject name or Subject
Alternate Name (SAN).
Ensure that the OCS Phone device does have root
CA certificate of the certification authority which has issued certificate to the
Exchange CAS server.
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