Definition of Demarcation Point or Demarc/D-MARK

In telephony, the demarcation point is the point at which the public switched telephone network ends and connects with the customer's on-premises wiring. It is the dividing line which determines who is responsible for installation and maintenance of wiring and equipment — customer/subscriber, or telephone company/provider. The demarcation point varies between countries and has changed over time.

Demarcation point is sometimes abbreviated as demarc, DMARC, or similar. The term MPOE (minimum or main point of entry) is synonymous, with the added implication that it occurs as soon as possible upon entering the customer premises. A network interface device often serves as the demarcation point.

In a nutshell, the demarcation point/dmarc is the physical place where your business connects to the outside world via your carrier.  This point is the greatest area of contention for all end users.  This is where the fingerpointing takes place between the end user and the carrier.  This is where TRCA shines.  We manage both sides of this relationship for you.

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