10.27.1  

Basic Features 
 
Numbering plan
 •   ISDN numbering plan
 •   The system does not support a private numbering plan.
Call detail recording
Direct inward dialing (external)
 •   In the local system: same as before.
 •   There is no transfer of call charges in transit traffic.
Consultation hold
 •   In the local system: same as before.
 •   To remote system:
Consultation calls over a second trunk are possible, that is the calls are switched from the local system over two B channels, and they can be transferred. When a user releases the call, the call last placed on hold becomes active.
Callback
 •   Users can activate completion of calls - no reply (CCNR) or completion of calls to busy subscribers (CCBS) to the remote system. They can activate CCNR if the other party does not answer or if a call is waiting. They can activate CCBS in the following situations: The other party is busy with one or multiple calls, engaged in a consultation call or a conference, or has activated do not disturb.
 •   Users cannot set a callback to a call forwarding destination, a member of a group call or hunt group, a room monitor, or an entrance telephone.
 •   Callback calls are deleted when the CS is reset, a trunk fails, or a port is reprogrammed; The same applies to calls from A to B and from B to A.
Call forwarding
 •   The system supports only the CFU (call forwarding unconditional), QSig version.
 •   To optimize b channel usage a forwarded call to a telephone of the main PBX is handled in accordance with the specifications for "call forwarding/partial rerouting". If partial rerouting is rejected, forward switching is used.
 •   If HiPath 3000/5000 is a gateway, forward switching is implemented.

Name display  
Only UPPERCASE letters are transferred. Users can specify whether a transferred name or the caller's station number is displayed.
Name display is supported for all calls which originate in the network. Name information is only displayed for trunk calls via tie trunks in the US.