Keymile SUPM1 - Port States

User Manual
SUPM1
page 43 of 94© KEYMILE December 2015 EN/LZTBU 372 129/1 RC
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Functional Description
5.5 Port States
Each PSTN user port has a subscriber state, an administrative state and an
operational state, which are controlled by the subscriber, by the element
manager or by the remote SIP subscriber connected to the VOIP1 unit. The
state control messages are transported inside the XMC20 via the V5CAS
protocol.
The port states handled in this section are used for the port maintenance
and can be found in the user port status management function. Contrary to
this the administrative state IETF and operational state IETF of the user port
main management function reflect the status of the physical port.
If the port administrative state of the main management function is set to
“down”, the port administrative state of the status management function is
forced to “locked”.
Please note:
The administrative and operational port states are valid for the V5CAS mode
of operation only.
→ In the MCAS mode of operation, the administrative and operational
port states are not valid. The administrative port state is fixed to
“unlocked”.
→ The subscriber state is valid as long as the IETF state is up.
Please note:
The administrative port state handling is supported in the V5CAS mode of
operation only.
The subscriber state shows the analogue line state. This status can have
two different states:
•idle
Subscriber is on-hook.
•busy
Subscriber is off-hook or ringing is applied.
The administrative state shows the network element controlled state of a
subscriber. The administrative state is influenced by the network element
itself and not by the signalling. It can take the following states:
•unlocked
• locked
• shutting down
Possible actions to change the administrative state are:
• lock (port status)
The subscriber becomes blocked immediately. Ongoing calls are inter-
rupted, no further calls are possible.
• shutdown (unit status)
When shutting down all subscribers the network element requests a
blocking from the softswitch or the local exchange. The softswitch or local
exchange allows the blocking if the subscriber state is idle. An ongoing
call is not interrupted. If any call is not terminated within the next 30 min-
utes after the issue of the shutdown command an SHT (shutdown time-
out) alarm is raised.