TS 12739

TS 12739 is a standard that sets rules for authorized services working on telephones and telephone exchangers. It provides a framework for service organizations supporting wired and cordless telephones, DECT telephones, telephone exchangers, and related telephone functions such as caller ID, with attention to business organization, structural arrangement, technical equipment, staff qualifications, and certification.

What an authorized service framework means technically

In this kind of standard, an “authorized service” is a service unit organized to install, maintain, and repair a product within defined operational conditions. For telephone and exchange systems, service quality is not limited to fixing faults; it also depends on suitable equipment, adequate technical competence, recordkeeping, and clearly assigned responsibilities. TS 12739 should be understood as applying this general service model to telephone technologies.

Device and service groups covered

• Wired telephones
• Cordless telephones
• DECT telephones
• Telephone exchangers
• Telephone-related caller ID functions

From a general technical perspective, telephone exchangers are communication infrastructures that manage multiple internal and external lines, so their service needs can be more complex than those of end-user handsets. The certification aspect points to a framework for showing that a service organization meets defined organizational and technical conditions. This standard was adopted in 2006 and later withdrawn, so current regulations and related up-to-date standards should be considered separately when evaluating products or services.