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6600 Your Assistant User Guide
Requirements
VPN Requirements
Your Assistant should work on any standards-compliant IPSec or PPTP VPN meeting the
following criteria:
•
Must be able to acquire the IP address of the VPN tunnel on the client.
•
Both voice and data paths travel over the VPN.
•
VPN must be able to traverse a corporate firewall.
•
VPN must be able to traverse a NAT device.
•
VPN must be able to traverse a client-side firewall. In particular, the VPN client (or
client-side firewall built into the VPN) must not block outbound or inbound UDP packets.
Note: Some VPNs will not register themselves in Windows as network connections
when they launch. As a result, the local IP address of the VPN does not show up in
the Mitel IP Phone Emulation control panel (see "Before Starting Your Assistant" on
page 57). You cannot use such VPNs with Your Assistant.
Network Requirements
To support Your Assistant, the network must be configured as follows:
•
G.729 compression for all remote connections.
•
High-speed internet connection (standard cable/DSL minimum).
•
No client-side hubs (switches or cable/DSL routers only).
Bandwidth Requirements
These bandwidth requirements are bi-directional. If your connection does not have
symmetrical upload/download speeds, use the lowest value for your calculations.
•
Corporate Bandwidth. The corporate data connection from the VPN concentrator to
the internet must have at least:
-
40 kbits/s of available bandwidth per simultaneous G.729 full-duplex call.
-
256 kbits/s connection speed for quality audio.
-
The connection should not be used at more than 40% of maximum capacity to
achieve high voice quality, assuming no QoS is available across the Internet.
•
Remote Bandwidth. Each remote site must have a minimum bi-directional bandwidth
of 256 kbits/s.
•
Remote ISP Bandwidth Quotas. Your Assistant Pro operating with G.729a will use
approximately 10 MB of data per hour (in each direction). Your Assistant also uses
approximately 1 kB per minute for signalling, when idle (or 43 MB per month if Your
Assistant is always on). Use your ISP quota to determine your available talk-time.
Note: These figures do not take into account the overhead for the VPN connection,
or of other data traffic on the connection. Lack of sufficient bandwidth may cause
degraded voice quality, slow response, or loss of service.
56
Revision B
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