Nortel BCM 3.7, Manual, Page: 622 / 1004

622 Determining the MSC resources you require
N0008589 3.3
18 How many IP trunks specified in question 15 will be using the G.729 codec?
The range is 0 to the maximum number of IP trunks selected in question 16.
For each IP trunk:
• add 3 to the DSP resource unit count
19 How many IP trunks specified in question 15 will be using the G.723 codec?
The range is 0 to the maximum number of IP trunks selected in question 16.
For each IP trunk:
• add 4 to the DSP resource unit count
20 How many T.38 fax tasks will be used during peak periods?
The range is 0 to 8.
For each fax task:
• add 6 to the DSP resource unit count
Note: The G.729 DSP resource unit count is rounded to ease calculations. For a more
accurate DSP resource unit count, refer to the table in “DSP resources rules” on page
617 .
Note: The G.723 DSP resource unit count is rounded to ease calculations. For a more
accurate DSP resource unit count, refer to the table in “DSP resources rules” on page
617 .
Note: The maximum number of fax ports shared between voice mail, IVR and T.38
IP Fax is 8.
Note:
The fax DSP resource unit count is rounded to ease calculations. For a more
accurate DSP resource unit count, refer to the table in “DSP resources rules” on page
617 .
Note:
If the source or destination of the T.38 IP Fax can be fax mail or IVR, the fax
message requires two fax tasks (12 units). One fax task handles the IP Fax portion of
the transmission and the other task handles the IVR or fax mail portion of the
transmission.
Note: To use T.38 Fax, you must have 2 or 4 MS-PEC III installed in your MSC card.
For information about how to determine the MS-PECs you have, refer to “Viewing the
MS-PEC configuration” on page 627 .