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BSNL has set up ATM network with nodes at Delhi, Mumbai,
Chennai, Kolkota and Bangalore. Initially Permanent Virtual Circuits (PVCs) will
be offered on E1 and E3 ports. Even for sub E1 speeds the customer has to subscribe one E1 port. Similarly for intermediate speeds between E1 and E3, the
subscriber has to take an E3 port.
During the experimental phase the following
provisional tariff is offered for a period of one year :-
| 1. |
Registration fee |
Rs. 1,000/- (non-refundable) |
| 2. |
Security Deposit |
Equal to one year’s port rentals (refundable but
non-interest
bearing). |
| 3. |
Port rentals |
For E1 port Rs. 90,000/- per annum.
For E3 port Rs. 3,46,000/- per annum.
Note : Payable in advance, annually/quarterly |
| 4. |
Period of Hire |
One year, However, if special constructions are involved the
minimum period hire shall be three years. |
| 5. |
Connectivity from ATM multiplexer to customer premises
|
Actual lease line charges as per the applicable tariff
shall be leviable. |
| 6. |
Usage Charges |
The usage charges are based on the type of service
selected by the customer, the speed and the duration of usage. The
tariff plan for service nrt–VBR (Non real time variable hit rate) is given
below : |
TABLE OF RATES
(RS./HOUR) FOR nrt- VBR CONNECTIONS FOR NATIONAL TRAFFIC
|
Connection
Speed(kbps) |
Total usage
for various services per month (in Hours) |
|
241-720 |
121-240 |
61-120 |
0-60 |
|
|
Hrs. |
Hrs. |
Hrs. |
Hrs. |
|
512 |
83 |
187 |
291 |
498 |
|
576 |
88 |
198 |
308 |
528 |
|
640 |
92 |
207 |
322 |
552 |
|
704 |
97 |
218 |
340 |
582 |
|
768 |
101 |
227 |
354 |
606 |
|
832 |
106 |
239 |
371 |
636 |
|
896 |
110 |
248 |
385 |
660 |
|
960 |
115 |
259 |
403 |
690 |
|
1024 |
119 |
268 |
417 |
714 |
|
1544 |
144 |
324 |
504 |
864 |
|
2048 |
170 |
383 |
595 |
1020 |
For other services the rates of nrt-VBR
shall be multiplied with the factors given below. The services available on ATM
and the corresponding factors are as under :
(i) rt–
VBR Factor – 1.1
(ii) CBR Factor – 1.2
In case of Local Traffic i.e. for distance between two ends
of the circuit (PVC) unto 25 km we may use Factor + 0.0909 on the above tariff
table.
Notes :
I.
The charges in the table above are for bi-directional symmetric
connections. The charges for unidirectional connections shall be 0.6 times of
the bi-directional symmetric connection charges.
II. The charges for bi-directional asymmetric connection are sum of
charge for each direction of the connection as per the calculation of
unidirectional connection charges.
III. The charges above are for virtual channel
connections. For virtual path connections the charges shall be 1.2 times.
IV. The
charges for intermediate speed like 4 mbps, 16 mbps and 34 mbps, the
multiplication factor of 2, 4, 8, 11 respectively shall be applied to the rate
applicable for 2048 kbps connection speed.
V. The charges in the table above are for P2P (Point to Point)
connection.
VI.
Minimum duration for PVC (Permanent Virtual Circuit) usage is one hour. For a
PVC having duration less than one hour and for fraction of an hour the charges
for one hour connection would be applied
VII.
The
usage per month shall be determined by totaling the usage by customer for
various services, determining the category in which it falls and then applying
the rates applicable to the usage (in hours) for various services used during
the month.
| 7. |
Minimum Usage
Charges |
A subscriber shall have to subscribe for
minimum usage duration of 60 hours in a month. In case lower usage,
charges for minimum usage shall still be payable. |
| 8. |
Miscellaneous Charges |
The
charges for miscellaneous services such as change in bandwidth of
PVC connections, change in VPI (Virtual Path Index) values,
activation/deactivation of PVC shall be a fixed amount of Rs.3000 per
request per item |
9. At the time of applying for this
services, the customer may intimate the size of the frame, maximum speed at
which he desires to send (to define the PCR (Peak Cell Rate), average speed at
which he desires to send (to define SCR (Sustained Cell Rate), to help the
network administrator define the parameters such as CDVT (Cell Delay Variation
Tolerance), MBS (Maximum Burst Size), etc. The customer may also inform the
network administrator the category of service required.
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