The Avaya Merlin Magix 408 GS/LS-ID/MLX Module connects any combination of up to 4 ground-start or loop-start lines and has 8 station ports for MLX telephones, BRI adjuncts and Computer Telephony Integration (CTI) adjuncts. 1 power failure transfer port. Compatible with loop-start Caller ID number and name service. Works with Merlin Magix system or Merlin Legend Release 2.0 or higher. Caller ID name display on Merlin Legend requires Release 7.0 and a Clamshell is required for Merlin Legend carriers.