New and Reconditioned

Hi-Line sells and services a full line of AT&T, Partner and Avaya telephone equipment.
We repair and recondition partner telphones like the Partner 18, Partner 18D, MLS 12 and the MLS 18D telephones. We also sell and service Partner mail, Partner ACS, Partner II, Partner Plus and the standard Partner line.

The PARTNER® Advanced Communications Release 7 System's processor module supports five incoming lines and nine extensions, while PARTNER Basic's system processor module supports 3 incoming lines and 8 extensions. The maximum Release 7 system configuration is 21 lines and 44 extensions, or 31 lines and 8 extensions. Either processor module can operate on its own or can be used with a 2- or 5-slot carrier and additional expansion modules. Expansion modules can be used to add lines and extensions to the system, or additional capabilities such as voice messaging and fractional T1 support.