Specifications
MBG Engineering Guidelines, Release 8.0
The collaboration bandwidth is in addition to that required for voice communications. Refer to 7 Additional
Application Requirements for the relevant firewall rules.
Presenters Participants Bandwidth Required
1 1 192 Kbps
1 2 256 Kbps
1 5 448 Kbps
2 2 460 Kbps
2 5 736 Kbps
1 10 768 Kbps
2 10 1.2 Mbps
2 50 4.9 Mbps
5 100 18.7 Mbps
Table 3: Bandwidth Requirements for MCA Collaboration
12.8 Mitel Contact Center Softphone Requirements
MBG release 4.5 introduced support for the Mitel Contact Center Softphone version 5.3. The softphone has
multiple components. Bandwidth requirements of the voice component are identical to any other Mitel set using
G.711 or G.729 (compression). In addition to voice, Mitel Contact Center Softphone supports the following
connections through the MBG server:
MBG Server Port Used Default Destination Port Description
TCP 36000 TCP 80 HTTP authentication and user profile access
TCP 36001 TCP 443 HTTPS authentication and user profile access
TCP 36002 TCP 5024 Real-time client
TCP 36003 TCP 5025 Auditor connection
TCP 36004 TCP 5026 Telephony proxy
The “MBG Server Port Used” column indicates the port on which MBG listens, on its Internet-facing side, for the
incoming connection. The “Default Destination Port” is the port on the Contact Center server to which MBG
routes the connection. Additional Mitel contact center connections were added over multiple releases and as of
MBG 8.0 also includes MBG Server TCP ports 35001 to 35008 inclusive. Refer to 7.2 Mitel Contact Center on
page 28 for firewall configuration instructions.
Bandwidth requirements will vary depending on the type of activity being performed. During installation of the
client, software is downloaded and installed. The client periodically checks for updates and may download and
install them. The bandwidth required by these tasks is not included in the tables below; it is assumed to be part
of the bandwidth used by the user's PC.
When a user first launches the Contact Center client and selects devices to view, there is a database transfer.
The size of the database depends on the objects selected, as follows:
1 Queue (Q) = 65 KB
1 Agent (A) = 39 KB
1 Employee = 20 KB
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