Secure Call Indication Tone; Ensuring Voice Quality - Cisco Small Business SPA509G Administration Manual

Configuring Security, Quality, and Network Features

Ensuring Voice Quality

STEP 3
STEP 4
STEP 5
NOTE
Ensuring Voice Quality
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide
Click the Phone tab.
In the Supplementary Services section, under Secure Call Serv, choose yes.
Click Submit All Changes.
This feature can also be configured from the User tab, under Supplementary
Services.
Users can enter *18 to Secure Next Call—Uses encrypted media for the next
outbound call (on this call appearance only). This star code is redundant if all
outbound calls are secure by default.
The phone can be configured for secure provisioning using the factory-installed
security certificate. To determine if the Client Certificate is installed on the phone:
• SPA50XG: Press the Setup button and select Product Info. Scroll to Client
Cert.
• SPA525G/525G2: Press the Setup button and select Status. Select Product
Information. Scroll to Certificate.
• WIP310: Log in to the configuration utility. In the Info tab, under Product
Information, certificate information is listed in the Client Certificate field.

Secure Call Indication Tone

This tone is played when a call has been successfully switched to secure mode. It
should be played only for a short while (less than 30 seconds) and at a reduced
level (less than -19 dBm), so it does not interfere with the conversation. You can
Regional
configure it on the
Defaults to 397@-19,507@-19;15(0/2/0,.2/. 1 /1,. 1 /2. 1 /2)
Voice quality perceived by the subscribers of the IP Telephony service should be
indistinguishable from that of the PSTN. Cisco IP phones support several codecs.
See:
• "Supported Codecs" section on page 137
• "Bandwidth Requirements" section on page 138
Call Progress Tones
web page under
5
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136