User guide
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12
Troubleshooting, continued
Expansion Module and Deskset Error Messages
If the message Cannot communicate with Deskset appears when you try to call an extension from the
Expansion Module, there may be a connection problem between the Expansion Module and the Deskset with
which it is paired.
First try making a call from the Deskset. If you can call out successfully, then
the Expansion Module is not paired to your Deskset or it has a network error.
Consult your system administrator.
If you cannot make a call from the Deskset, then the Deskset has a network
error (which may be indicated by a message on the Deskset screen or Deskset
Device Information page), the Deskset may be disconnected from the network,
or have lost power. Ensure that the Deskset has power and is connected to the
network.
For more information about troubleshooting the Deskset, consult your
system administrator or download the Deskset User Guide from
www.telephones.att.com/synapseguides.
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