Mg 1000B Core And Mg 1000B Expander Requirements - Avaya 1000 Installation And Commissioning Manual

Branch Office engineering example
PRI_TDM_calls = PRI_TDM_CCS x 100 seconds ÷ average hold time (PRI_TDM_CCS,
from procedure Calculating traffic, step 7) = 96 x 100 ÷ 120 = 80 calls
2. Calculate the TDM telephone to IP Phone calls (these use virtual trunks).
TDM_IP_calls = TDM_IP_CCS x 100 seconds ÷ average hold time (TDP_IP_CCS, from
procedure Calculating traffic, step 5) = 144 x 100 ÷ 120 = 120 calls
3. Calculate the IP telephone to PRI Trunk calls (these use virtual trunks)
PRI_IP_calls = PRI_IP_CCS x 100 seconds ÷ average hold time (PRI_IP_CCS, from
procedure Calculating traffic, step 6) = 252 x 100 ÷ 120 = 210 calls
4. Calculate the total number of calls at the Branch Office.
Total_calls = PRI_TDM_calls + TDM_IP_calls + PRI_IP_calls = 80 + 120 + 210 = 410 calls
per hour
5. Calculate the Call Server real-time multipler.
• System RTM = 1+ [(PRI_TDM_calls ÷ Total_calls) x f10] + [(TDM_IP_calls ÷ Total_calls) x
f9] + [(PRI_IP_calls ÷ Total_calls) x f4] + error_term
• System RTM = [(80 ÷ 410) x 4.36] + [(120 ÷ 410) x 3.95] + [(210 ÷ 410) x 3.65) = 1+ 0.851
+ 1.156 + 1.87 + 0.25 = 5.127
Note:
For more information about real time factors (f4, f9, f10, error_term), see Avaya
Communication Server 1000E — Planning and Engineering, NN43041-220. Use the
Communication Server 1000E Co-resident Calling Server and Signaling Server column.
6. Calculate the Call Server loading in EBC.
System EBC = Total_Calls x System RTM = 410 x 5.127 = 2102
7. Calculate the Call Server loading in percent.
Real Time Usage = System EBC ÷ rated EBC x 100 = 2102 ÷ 150000 x 100 = 1.4%
Note:
For more information about the rated EBC, see Avaya Communication Server 1000E —
Planning and Engineering, NN43041-220. Use the Communication Server 1000E Co-
resident Calling Server and Signaling Server value.
The configuration loading for the Call Server is very low at 1.4 per cent. Locate this Call
Server at the Branch Office or anywhere within the zone.

MG 1000B Core and MG 1000B Expander requirements

Table 56: MG 1000B Core and MG 1000B expander card type, number and devices
shows the number of cards required and the devices on those cards.
Branch Office Installation and Commissioning
220
Comments? infodev@avaya.com
on page 221
June 2014