(b) Each DCTU must comply with the service
quality objectives established below in providing the basic telecommunications
service to its end-use customers and must file its service quality performance
report on a quarterly basis. The report must include its monthly performance
for each category of performance objectives and provide a summary of its
corrective action plan for each exchange in which the performance falls below
the benchmark. Additionally, the corrective action plan must include, at a
minimum, details outlining how the necessary improvements will be implemented
within three months from the filing of the service quality performance report
and will result in performance at or above the applicable benchmark.
(1) Installation of service. Unless otherwise
provided by the commission:
(A) Ninety-five
percent of the DCTU's service orders for installing primary service must be
completed within five working days, excluding those orders where a later date
was specifically requested by the customer. Performance Benchmark Applicable
for Corrective Action: If the performance is below 95% in any exchange area for
a period of three consecutive months, the DCTU must provide a detailed
corrective action plan for such an exchange or wire center.
(B) Ninety percent of the DCTU's service
orders for regular service installations must be completed within five working
days, excluding those orders where a later date was specifically requested by
the customer. This includes orders for any primary service, installation, move,
change, or other service, except for any complex service. Performance Benchmark
for Corrective Action: If the performance is below 90% in any exchange area for
a period of three consecutive months the DCTU must provide a detailed
corrective action plan for such an exchange or wire center.
(C) Ninety-nine percent of the DCTU's service
orders for service installations must be completed within 30 days. Performance
Benchmark for Corrective Action: If the performance is below 99% in any
exchange area for a period of three consecutive months, the DCTU must provide a
detailed corrective action plan for such an exchange or wire center.
(D) One-hundred percent of the DCTU's service
orders for service installations must be completed within 90 days.
(E) Each DCTU must establish and maintain
installation time commitment guidelines for the various complex services
contained in the DCTU's tariff. Those guidelines should be available for public
review and should be applied in a nondiscriminatory manner.
(F) The installation interval measurements
outlined in subparagraphs (A) - (D) and (H) of this paragraph must commence by
either the date of application or the date on which the applicant qualifies for
service, whichever is later.
(G)
The DCTU must provide to the customer a commitment date on which the requested
installation or change will be made. If a customer requests that the
installation or change be performed on a regular working day later than the
date proposed by the DCTU, then the customer's requested date will be the
commitment date. If a premises visit is required, the DCTU must schedule an
appointment period with the customer for the morning or afternoon, not to
exceed a four hour time period, on the commitment date. If the DCTU is unable
to keep the appointment, the DCTU must attempt to notify the customer by a
telephone call and schedule a new appointment. If unable to gain access to the
customer's premises during the scheduled appointment period, the DCTU's carrier
representative must leave a notice at the customer's premises advising the
customer how to reschedule the work.
(H) Ninety percent of the DCTU's commitments
to customers for the date of installation of service orders must be met,
excepting customer-caused delays. Performance Benchmark Applicable for
Corrective Action: If the performance is below 90% in any exchange area for a
period of three consecutive months, the DCTU must submit a list of missed
commitments to the commission and provide a detailed corrective action plan for
such an exchange or wire center.
(I) The installation interval and commitment
requirements of subparagraphs (A) - (D) and (H) of this paragraph do not
include service orders either to disconnect service or to make only record
changes on a customer's account.
(J) A held regrade order means an order not
filled within 30 days after the customer has submitted an application for a
different grade of service, except where the customer requests a later date. In
the event of the DCTU's inability to so fill such an order, the customer must
be advised and told when the DCTU can fulfill the order. The number of held
regrade orders must not exceed 1.0% of the total number of customer access
lines served.
(2)
Operator-handled calls. For each exchange, a DCTU must, on a monthly basis,
maintain adequate personnel to provide an average operator answering
performance as follows:
(A) Eighty-five
percent of toll and assistance operator calls answered within ten seconds, or
average answer time must not exceed 3.3 seconds. Benchmark for Corrective
Action: If the performance is either below 85% within ten seconds or if the
average exceeds 3.3 seconds at any answering location in any given month, the
DCTU must provide a detailed corrective action plan for such an exchange or
wire center.
(B) Ninety percent of
repair service calls must be answered within 20 seconds or average answer time
must not exceed 5.9 seconds. Benchmark for Corrective Action: If the
performance is below 90% within 20 seconds or the average answer time exceeds
5.9 seconds at any answering location for a period of five days within any
given month, the DCTU must provide a detailed corrective action plan for such
an exchange or wire center.
(C)
Eighty-five percent of directory assistance calls must be answered within ten
seconds or the average answer time must not exceed 5.9 seconds. Benchmark for
Corrective Action: If the performance is either below 85% within ten seconds or
if the average answer time exceeds 5.9 seconds at any answering location in any
given month, the DCTU must provide a detailed corrective action plan for such
an exchange or wire center.
(D)
DCTUs may measure answer time on a toll center or operating unit basis as an
alternative to measuring answer time in each exchange unless specifically
requested by the commission.
(3) Local dial service. Sufficient central
office capacity and equipment must be utilized to meet the following
requirements:
(A) dial tone within three
seconds on 98% of calls. For record-keeping and reporting purposes, 96% in
three seconds during average busy season or busy hour complies with this
requirement;
(B) completion of 98%
of calls originating and terminating within the same central office building
(intraoffice calls) without encountering network congestion or blockage, or
equipment irregularities;
(C) for
every switch that serves a customer, the availability factor for stored program
controlled digital and analog switching facilities must be 99.99%, or the total
unscheduled outage for each switch must not exceed 53 minutes per
year.
(D) For any exchange that
falls below the established performance objective level, a report detailing the
cause and proposed corrective action for the local dial service measures must
be submitted to the commission.
(4) Local interoffice dial service.
(A) Each DCTU must provide and maintain
interoffice trunks on its portion of the local exchange service network so that
97% of the interoffice local calls excluding calls between central offices in
the same building are completed without encountering equipment busy conditions
or equipment failures. For a DCTU's testing, record-keeping, and reporting
purposes, the DCTU is not required to separate local dial service results from
local interoffice dial service results unless specifically requested by the
commission.
(B) The availability
factor for stored program controlled digital and analog switching and
interoffice transmission facilities for end-to-end transmission must be 99.93%,
or the total unscheduled outage must not exceed 365 minutes per year.
(C) For any exchange that falls below the
established performance objective level, a report detailing the cause and
proposed corrective action for the local dial service measures, must be
submitted to the commission.
(5) Direct distance dial service. Engineering
and maintenance of the trunk and related switching components in the toll
network must permit 97% completion on properly dialed calls, without
encountering failure because of network congestion or blockages, or equipment
irregularities. For any exchange that falls below the established performance
objective level, the DCTU must submit to the commission a report detailing the
cause and proposed corrective action for the direct distance dial service
measure.
(6) Customer trouble
reports.
(A) A DCTU that serves more than
10,000 access lines must maintain its network service in a manner that ensures
the DCTU receives no more than three customer trouble reports on a company-wide
basis, excluding customer premises equipment (CPE) reports, per 100 customer
access lines per month on average. Performance Benchmark Applicable for
Corrective Action: If the customer trouble report exceeds 3.0%, or three per
100 access lines, for a large exchange or 6.0%, or six per 100 access lines,
for a small exchange for three consecutive months, the DCTU must provide a
detailed corrective action plan for such an exchange or wire center. For
purposes of this section, a large exchange is defined as an exchange serving
10,000 or more access lines and a small exchange is defined as an exchange
serving less than 10,000 access lines.
(B) A DCTU that serves 10,000 or less access
lines must maintain its network service in a manner that ensures the DCTU
receives no more than six customer trouble reports on a company-wide basis,
excluding CPE reports, per 100 customer access lines per month on average.
Performance Benchmark Applicable for Corrective Action. If the customer trouble
report exceeds 6.0%, or six per 100 access lines per exchange for three
consecutive months, the DCTU must provide a detailed corrective action plan for
such an exchange or wire center.
(C) The DCTU must provide to the customer a
commitment date by which the trouble will be cleared. If a premises visit is
required, the DCTU must schedule an appointment period with the customer for
the morning or afternoon, not to exceed a four hour time period, on the
commitment date. If the DCTU cannot keep an appointment, the DCTU must attempt
to notify the customer by a telephone call and schedule a new appointment. If
unable to gain access to the customer's premises during the scheduled
appointment period, the DCTU representative must leave a notice at the premises
advising the customer how to reschedule the work.
(D) At least 90% of out-of-service trouble
reports on service provided by a DCTU must be cleared within eight hours,
except where access to the customer's premises is required but unavailable or
where interruptions are caused by a force majeure affecting large groups of
customers. Performance Benchmark Applicable for Corrective Action: If the
performance is below 90% in any exchange area for a period of three consecutive
months, the DCTU must provide a detailed corrective action plan for such
anexchange or wire center.
(E) Each
DCTU must establish procedures to ensure the prompt investigation and
correction of trouble reports so that the percentage of repeated trouble
reports on residence and single line business lines does not exceed 22% of the
total customer trouble reports on those lines. Performance Benchmark Applicable
for Corrective Action: If repeat reports exceed 22% of the total customer
trouble report in any exchange for three consecutive months, the DCTU must
provide a detailed corrective action plan for such an exchange or wire
center.
(7) Transmission
requirements. All voice-grade trunk facilities must conform to accepted
transmission design factors and must be maintained to meet the following
objectives when measured from line terminals of the originating central office
to the line terminals of the terminating central office. A periodic report for
central offices or exchanges as requested by the commission staff must be
provided by the DCTU to demonstrate compliance with the following objectives.
(A) Interoffice local exchange service calls.
Excluding calls between central offices in the same building, 95% of the
measurements on the network of a DCTU should have a C-message weighting between
two to ten decibels loss at 1000+20 hertz and no more than 30 decibels above
reference noise level.
(B) Direct
distance dialing. Ninety-five percent of the transmission measurements should
have a C-message weighting from three to 12 decibels loss at 1000+20 hertz and
no more than 33 decibels above reference noise level.
(C) Subscriber lines. All newly constructed
and rebuilt subscriber lines must be designed for a transmission loss of no
more than eight decibels from the serving central office to the customer
premises network interface. All subscriber lines must be maintained so that
transmission loss does not exceed ten decibels. Subscriber lines must in
addition be constructed and maintained so that metallic noise does not exceed a
C-message weighting of 30 decibels above reference noise level on 90% of the
lines. Metallic noise must not exceed a C-message weighting of 35 decibels
above reference noise level on any subscriber line.
(D) Private Branch Exchange (PBX), key, and
multiline trunk circuits. PBX, key, and multiline trunk circuits must be
designed and maintained so that transmission loss at the subscriber station
does not exceed eight decibels. If the PBX or other terminating equipment is
customer-owned and, if transmission loss exceeds eight decibels, the DCTU's
responsibility is limited to providing a trunk circuit with no more than five
decibels loss from the central office to the point of connection with the
customer's facilities.
(E) Impulse
Noise Limits. The requirements for impulse noise limits are as follows:
(i) For switching offices, the noise level
count must not exceed five pulses above the threshold in any continuous five
minute period on 50% of test calls. The reference noise level threshold must be
less than: 54 decibels above reference noise with C-message weighting (dBrnC)
dBrnC for a Crossbar switch, 59 dBrnC for a step-by-step switch, and 47 dBrnC
for a electronic or digital switch.
(ii) For trunks, the noise level count must
not exceed five pulses above the threshold in any continuous five minute period
on 50% of trunks in a group. The reference noise level threshold must be less
than 54 dBrnC at a zero transmission level point (dBrnC0) dBrnCO for voice
frequency trunks, and 62 dBrnC0 for digital trunks.
(iii) For loop facilities, the noise level
count must not exceed 15 pulses above the threshold in any continuous 15 minute
period on any loop. The reference noise level threshold must be less than 59
dBrnC when measured at the central office, or referred to the central office
through 1004 Hz loss.