user manual

Configuring Support for PBX Signalling Protocols
Configuring Transparent CCS on the Cisco MC3810
MC-430
Cisco IOS Multiservice Applications Configuration Guide
The voice channel type configured as the ext-sig-master is considered the master side of the permanent
virtual circuit (PVC) connection and is responsible for establishing the PVC connection. After the
master channel is configured, a fixed timer of 30 seconds starts. The voice signalling driver then
generates an off-hook signal on the master voice channel after the timer expires. The call is treated as a
regular call, and the master voice channel will not hang up after the connection is made. If the call does
not go through, or if the T1/E1 trunk is down, the 30-second timer on the master channel side restarts.
A new off-hook signal is then generated at the master channel side after the timer expires.
CCS cross-connect is not supported on analog PVC connections.
Configuring CCS Frame-Forwarding
The Cisco MC3810 provides support for CCS frame-forwarding, which allows the Cisco MC3810 DVM
to be connected to a Private Telco Network Exchange (PTNX) without needing to interpret CCS
signalling information for call processing. CCS frame-forwarding forwards High-Level Data Link
Control (HDLC) frames over a preconfigured interface running HDLC, Frame Relay, or ATM
encapsulation.
With CCS frame-forwarding, the connection between PTNXs over the network must be point-to-point
and preconfigured. With the CCS frame-forwarding implementation, calls from the PTNX devices are
not routed, but follow a preconfigured route to the destination.
Step 5
For Cisco MC3810 series analog voice ports:
router(config)# voice-port slot/port
For Cisco MC3810 series digital voice ports:
router(config)# voice-port slot:ds0-group
Enters voice-port configuration mode.
Step 6
Router(config-voiceport)# connection plar string
Configures the voice-port connection to support
PLAR mode. For the string, enter the number of the
voice channel that was configured as the
ext-sig-slave for the voice-group command.
Note After a transparent CCS connection is
configured with the connection plar
command, any change to the configuration
will not take place until the connection is shut
down with a shutdown command and then
restarted with a no shutdown command. For
example, the phone number supplied in the
connection plar command can be changed
while the connection is in no shutdown state,
but the change will not cause the current
connection to be closed and a new connection
opened to the new phone number. This will
only take effect on the next no shutdown
command after a shutdown command.
Command Purpose