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Restriction Feature Logical partitioning handling does not take place in the following circumstances: • When both the caller and forwarded devices are Voice over IP (VoIP) phones. • When geolocation or a geolocation filter is not associated with any device. Logical Partitioning Multilevel Precedence and Preemption (MLPP) support for supplementary services specifies the following restrictions for Call Forwarding: • Call Forward All (CFA) support for inbound MLPP calls always forwards the call to the MLPP Alternate Party (MAP) target of the called party, if the MAP target is configured. In the event of an incorrect configuration (that is, if no MAP target is specified), the call gets rejected, and the calling party receives reorder tone. • Call Forward No Answer (CFNA) support for inbound MLPP calls forwards the call once to a CFNA target. After the first hop, if the call remains unanswered, the call is sent to the MAP target of the original called party, if the MAP target is configured. In the event of an incorrect configuration (that is, if no MAP target is specified), the call gets rejected, and the calling party receives reorder tone. • Call Forward Busy (CFB) support for inbound MLPP calls forwards the call up to the maximum number that is configured for forwarding hops. If the maximum hop count is reached, the call is sent to the MAP target of the original called party, if the MAP target is configured. In the event of an incorrect configuration (that is, no MAP target is specified), the call gets rejected, and the calling party receives reorder tone. Multilevel Precedence and Preemption (MLPP) When a call is transferred, the call classification takes on the classification of the transferred leg, rather than the original leg. For example: • Incoming call from PSTN is received by a receptionist. This is an external call. • The receptionist transfers the call to extension 3100. The transferred call is now an internal call. • The user at extension 3100 is busy, but has Call Forward External configured to send external calls back to the receptionist. However, because the call takes on the classification of the second leg (internal), the call goes to voicemail. Call Forward Classification with Call Transfer Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 351 Receiving Calls Call Forwarding Restrictions