iPECS-LIK
Feature Description & Operation Manual
2.70.2.12 CO Transit-In
Description
The incoming DID call can reroute to the net call destination that is in another system.
Operation
1. A DID call is arrived from PX. There is no limit for selecting DID conversion type.
According to the result of DID conversion, the call will be routed.
2. Network CO line is seized automatically, and the call is transfer to the network
destination.
The destination receives the ringing with CLI from PX.
The outside user still hears a ring-back tone.
3. Both the outside user and the destination station can make a conversation when the
destination station answers the ringing.
Conditions
1. Any timer is not assigned to the transit CO line.
2. Outside caller hears busy tone when a networking path is not available during
transit.
Programming
2.70.2.13 CO Transit-Out
Description
The sub-system that has no connection to public network can make a use of the main-system
that has connection to public network as well as sub-system. This feature enables a user to
maximize use of the network and reduce call costs by routing outgoing calls to the nearest
appropriate point on the network. The system should provide sufficient digit translation or string
analysis options to enable the switch to route the call correctly.
Operation
1. A station of sub-system seizes CO line.
2. The dummy CO dial tone (in case of PRI real dial tone from PX will be heard) is
provided from the main system or the sub-system. According to the CO dial-
sending mode of en-block or overlap, the CO dial tone providing system is decided.
3. Dial the telephone number of public network user.
4. The dialed telephone on public network receives the call alert ring, and the station of
sub-system hears the ring-back tone.
5. The call connection between the public network telephone and the station of sub-
system is established, when the call is answered.
Conditions
1. To use CO transit-out service, the sub-system user must seize the CO line explicitly.
2. The original station’s COS is applied for toll restriction.
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