The purpose of this Interconnection Trunk Forecast Document is to provide guidelines for the formats and language to be used in exchanges of trunk forecast information between CLECs or Wireless Carriers and FairPoint.
These guidelines DO NOT supersede any established or future Interconnection Agreements between FairPoint and individual CLECs or Wireless Carriers and regulatory orders or tariff provisions related to interconnection trunking.
FairPoint uses the following industry standard procedures when engineering a network. These procedures are to be used by CLECs when trunk groups are established and/or adjusted to FairPoint switches.
Two-way trunk groups are jointly managed; no unilateral decisions and/or Access Service Requests (ASRs) are issued. One-way trunk groups are under the exclusive control of the originating carrier.
Each Carrier provides a contact for trunk planning, forecasting and servicing purposes.
Trunk ASRs need to include the minimum following information:
When differences in the forecasted quantities of carriers vary by more than 24 trunks, the companies meet in an attempt to reconcile forecast(s) to within 24 trunks. If a company escalates to an executive level and is unable to reach such reconciliation, either company may invoke the default of one-way trunking.
Trunk Group augments are modular (increments of 24 trunks where reasonable).
Note: E911, Directory Assistance and other miscellaneous trunk groups may be engineered in lesser quantities.
When trunk groups are initially established, it is between a CLEC and a FairPoint tandem switch.
The tandem trunk group distributes traffic to each of its subtending switches.
When traffic on the trunk group increases to a degree justifying a dedicated trunk for one or more of the subtending switches high usage trunks group(s) are established. The minimum amount of traffic to establish a high usage trunk group of twelve (12) trunks is based on an Economic CCS of 15; all High Usage groups to be engineered for an Economic CCS of 15 (ECCS 15).
Reference Telcordia Technologies BR 780-402-200 (Alternate Routing Trunk Tables). High usage trunk group augments are modular (increments of 24 trunks) and the augment occurs when trunk groups require 12 more trunks than are in service.
Busy hour data is collected using:
The busy season is defined as the busiest consecutive four weeks of the year on a rolling basis.
When a trunk group's utilization is under 50% of CCS Grade of Service (GOS) capacity for any six-month period, either carrier may issue an order to re-size the trunk group. The trunk group shall be re-sized to no more than 30%, but not less than 20% excess capacity using the busy month of the six-month period as the basis (within modular 24 trunks provisioning).