Question: Where can Pseudonym Mediation Device (PMD) functionality be integrated, according to specifications for Location Services (LCS)?
Option 1: Only as a standalone network entity or within the Gateway Mobile Location Centre (GMLC)
Option 2: Within the Serving and Packet Data Serving Node (SN/PDSN), the Radio Access Network (RAN), or the Home Subscriber Server (HSS)
Option 3: Within the Proxy Call Session Control Function (P-CSCF), the Serving Call Session Control Function (S-CSCF), or the Policy and Charging Rules Function (PCRF)
Option 4: Within the Public Positioning Radio (PPR), GMLC, or other network entities
Explanation: According to specifications for Location Services (LCS), PMD functionality can be integrated either as a standalone entity or within the Gateway Mobile Location Centre (GMLC), due to the GMLC's crucial role in location services, making it a logical integration point for PMD.