Installation guide

QuadroCS Manual II: Administrator's Guide Administrator's Menus
QuadroCS (SW Version 3.1.x) 9
The Wizard allows navigating through the following basic configuration parameters and settings:
• Uplink configuration (see below)
For WAN Interface protocol PPPoE:
• PPP Settings
• WAN Interface Configuration (see below)
• DNS Settings
For WAN Interface protocol Ethernet:
• WAN IP Configuration
• WAN Interface Configuration (see below)
• DNS Settings
The Switch to Auto Provisioning link moves you to the
Automatic Provisioning page where Quadro can be configured automatically.
The Uplink Configuration page allows you to select the WAN
interface connection type and the bandwidth settings. These
settings will make QuadroCS available to the external network.
Depending on the Uplink Interface Protocol selection, the page
following the Uplink Configuration page is different. Thus if
PPPoE is selected, the next page will be PPP Configuration (see
PPP Settings), while selecting Ethernet will bring up the WAN IP
Configuration page.
The Uplink Configuration page offers the following components:
The WAN Interface Protocol radio buttons are used to choose the
protocol depending on the requirements of the ISP (Internet Service
Provider):
PPPoE - turns on the PPP over an Ethernet connection.
Ethernet - turns on the Ethernet connection.
Fig. II-7: Internet Configuration Wizard - Uplink Configuration page
The WAN Interface Bandwidth settings allow the specification of the upstream and downstream speeds in kbit/s, helping to assure the quality of IP
calls. An IP call looses the voice quality if there is no available bandwidth. When approaching the limits of bandwidth capacity, another IP call will be
declined.
The bandwidth provided by the ISP has to be specified in the text fields Upstream Speed and Downstream Speed. The default entry in both fields
is 10000, the maximum bandwidth of a 10 MB Ethernet. In most cases, providers offer a smaller bandwidth than 10000 kbit/s.
The bandwidth required by an IP call depends on the codecs used and these specifications are listed in the tables below:
Required Bandwidth for Standard Packets:
Needed bandwidth in kbit/s using the Codecs: Packet
Size in
msec.
G.711u/G.711a G.726-16 G.726-24 G.726-32 G.726-40 G.729a G723-5.3 G723-6.3 iLBC-13.33
10 105 58 66 73 81 50 - - -
20 84 37 45 53 60 29 - - -
30 77 30 38 45 53 22 19 20 27
40 73 26 34 42 50 18 - - -
50 71 24 32 40 48 16 - - -
60 70 23 30 38 46 15 12 13 21
The Min Data Rate text field requires the amount of upstream bandwidth that ought to remain for data applications even if voice applications use the
entire available upstream bandwidth. The value selected here needs to be smaller than the upstream bandwidth and is measured in kbit/s.