-
Many small business customers employ custom calling features such as call waiting, from the BOC/LEC, attempting a more PBX-like capability. These features are not supported by SLS.
-
Non-ISDN signaling:
-
Calling party name/number information to digital station displays
-
Caller ID on outgoing analog station calls
-
Caller ID on incoming analog loop-start trunk calls
-
Three party conferences
-
Last Number Redial
-
Call Forwarding-Busy/Don’t Answer
-
No Music On Hold source or announcement playback
-
Call Center features, including ASAI
-
Connection Preserving Failover/Failback for Branch Gateways