Nortel Networks 9150 - Manual (Page 416)

386 Remote Gateway 9150 Installation and Administration Guide
Planning forms Standard 3.1
Remote Gateway 9150
System expansion worksheet
Page 2 of 4
Call blocking:
9 Do you want to implement call blocking? (Users will receive a
fast busy signal when resources are not available.)
❒
Yes
❒
No
10 If line 9 is Yes, calculate the number of calls that can be active at one time.
Note: A conservative estimate of one call in three being blocked when no
resources are available is recommended.
Multiply line 6 by your call blocking factor. For example, to calculate the number
of simultaneous calls that can be supported at a 3:2 blocking ratio, multiply line
8 by 2/3 (0.666). If the result contains a fraction, round up to a whole number.
Line 8: _________ x ___________ = _______________
If line 9 is No, the number of simultaneous calls is the same as the number of
stations installed. (Record your response to line 8 here.)
___________
Call routing:
11 How do you want to route host-controlled calls?
❒
IP network
❒
PSTN
❒
Both
Note: If you want to route host-controlled calls over both networks, then you can use QoS
Transitioning Technology.
12 If line 11 is PSTN or Both, do you want to support locally
controlled calls through the PSTN (that is, support local
calling)?
❒
Yes
❒
No
Number of trunk interface modules needed for QoS transition support or routing calls over the PSTN
Note: If you are routing calls over the IP network only, skip this section.
13 If line 12 is No, enter 0.
If line 12 is Yes, how many simultaneous digital telephone or ATA local calls do
you want to support?
Enter a value between 1–7.
Note: Only one active call per ISDN BRI B-channel is allowed in locally
controlled mode because local calls are not compressed.
___________