User manual

Chapter 5 User Notes 39
Nortel Business Secure Router 222 — Fundamentals
1 Determine your actual WAN up-stream bandwidth by connecting to a web site
such as http://myvoipspeed.visualware.com/.
2 On BANDWIDTH MANAGEMENT / Summary, activate WAN bandwidth
management, and fill in your actual uplink speed in the WAN Speed field..
3 On BANDWIDTH MANAGEMENT / Class Setup, add a WAN subclass, and
reserve sufficient bandwidth based on the number of telephones, for Protocol
ID 17 (UDP Traffic).
The amount of bandwidth should be based on a reasonable peak number of
simultaneous calls, and the data rate needed by the IP telephony CODECs.
Setting Up a Remote Office with a UNIStim IP Telephone
For a remote office with a PC, and a UNIStim IP telephone behind a BCM50a
Integrated Router, Client Emulation is the recommended method to connect to the
main office.
1 At the main office Contivity Client Server, establish two user accounts - one
for the telephone, and one for the PC.
2 On the remote office BCM50a Integrated Router, do the following:
Under WAN / WAN IP, ensure that Network Address Translation is set to
SUA Only (default). Also ensure that the Gateway IP address is set (not
0.0.0.0).
Under VPN / Summary, create an entry for the IP telephone client tunnel.
(Contivity Client, Active, Keep Alive). Fill in the IP address of the Contivity
Client Server, and the name and password of the telephone set user account.
Under VPN / Global Setting, enable Exclusive Mode, and fill in the MAC
address of the telephone set.
Under Bandwidth Management, set up WAN bandwidth management to
reserve 110 kbps of bandwidth for UDP traffic (protocol ID 17). See the
preceding section titled, “Preventing heavy data traffic from impacting
telephone calls.
3 Provision the IP set with the corporate call server address.
4 On the PC, install Contivity Client Software, and configure it with the PC user
account information.