Page 100 of 544
Model 1
Model 2
Model 3
Model 4
553-3011-100
Standard 14.00
Provisioning
Table 24, "Digitone receiver (DTR) requirements — Model 1," on page 117
is based on the following factors:
•
33 percent intra-office calls, 33 percent incoming calls, and 33 percent
outgoing calls
•
1.5 percent dial tone delay grade of service
•
no Digitone DID trunks or incoming Digitone tie trunks
Table 25, "Digitone receiver (DTR) requirements — Model 2," on page 118
is based on the following factors:
•
the same traffic pattern as Model 1
•
Digitone DID trunks or incoming Digitone tie trunks
•
Poisson 0.1 percent blockage grade of service
Table 26, "Digitone receiver (DTR) requirements — Model 3," on page 119
is based on the following factors:
•
15 percent intra-office calls, 28 percent incoming calls, and 56 percent
outgoing calls
•
1.5 percent dial tone delay grade of service
•
no Digitone DID trunks or incoming Digitone tie trunks
Table 27, "Digitone receiver (DTR) requirements — Model 4," on page 120
is based on the following factors:
•
the same traffic pattern as Model 3
•
Digitone DID trunks or incoming Digitone tie trunks
•
Poisson 0.1 percent blockage grade of service
January 2002