Hi, friend
The SIP user of the branch node is configured
in the central node. When configuring, the SIP user number can be synchronized
to the local node. Therefore, SIP number allocation is not required on the
U1911 gateway of the local node. However, in addition to the configuration of
the central node, the POST user needs to be configured on the U1911 gateway of
the local node.
For details, see Multi-Node
Network Scenarios (Centralized Call Management Network).