Replication problem between DC's

I am receiving a strange replication error in one of our domains. It is referencing a directory that no one here seems to know the purpose of.  I think it relates to telephony.  Does anyone know what this directory is used for?  How can we disable replication of just that single directory without affecting anything else?  I would like to disable the replication of just that directory and not delete it in the event someone needs it in the future.

The error is:

AD replication health degraded: Directory partition DC=TAPI3 Directory,DC=xxxxxxx,DC=xxxxxx,DC=xxxxxxx,DC=xx


Replication Status ------------------ Status: There is no replication partner for this directory partition. Severity: 10
lupodwdmAsked:
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eridzoneCommented:
Have you extended your schema recently?

check your NTDS.dit location how many and what types of file are there ?
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msmamjiCommented:
My best guess is that a Telephony related application installed the application directory, probably to  facilitate IP telephony calls and conferencing.

To the best of my knowledge, there is no clean way of doing this. Even if there was I wouldn't recommend it. If your want to keep the directory partition and do away with the error, it would be a good idea to create the application partition on some other DC, replicate the partition from this DC to other DC. That way you would be get rid of the error and will also have the application partition handy if one DC goes down. Right now it seems as though you only have one DC holding the TAPI Application partition.

Manage a TAPI Application Directory Partition
http://technet.microsoft.com/en-us/library/cc783825(WS.10).aspx

Regards,
Shahid
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