Terms used throughout the NocTel universe.
CNAM DIP
Requesting a Caller ID Name (CNAM) when you have the phone number.
Grade of Service (GOS)
A Grade of Service (GOS) is a statistical probability of receiving a busy signal for a given volume of traffic, presented to a given number of trunks. We represent GOS as a capital P (for probability) followed by a number between 0 and 1. The number is the probability of receiving a busy signal for a call attempt on the trunk group. For example, a P.02 grade of service would indicate a sufficient number of trunks such that no more than 2 busies out of a theoretical 100 call attempts would be incurred during a given hour.
NocTel
A hosted VoIP provider based in Portland, Oregon.
SIP
Session Initiation Protocol