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VoIP/(802.11g) ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
114
Confirm Password: Re-enter the password for confirmation.
Display Name: This parameter will be appeared on the Caller ID.
Codec Preference
Codec is known as Coder-Decoder used for data signal conversion. Set the priority of voice
compression; Priority 1 owns the top priority.
G.729: It is used to encoder and decoder voice information into a single packet which reduces the
bandwidth consumption. 8kbps bandwidth is needed.
G.711μ-LAW: It is a basic non-compressed encoder and decoder technique. μ-LAW uses pulse code
modulation (PCM) encoder and decoder to convert 14-bit linear sample. 64kbps bandwidth is needed.
G.711A-LAW: It is a basic non-compressed encoder and decoder technique. μ-LAW uses pulse code
modulation (PCM) encoder and decoder to convert 13-bit linear sample. 64kbps bandwidth is needed.
Non-used: Only available in Priority 2 and 3. It is selected if codec is not to be used.
Note: Codec priority is assigned in the order as G.729 > G.711μ-LAW > G.711A-LAW.
Speed Dial
Speed Dial comes handy to store frequently used telephone numbers which you can press number from
0 to 9 and the pound sign (#) on the phone keypad to activate the function. For example, speed dial to
phone number lists on 9, just press keypad 9 then #. Your router will automatically call out to number
listed on entry 9.
For examples:
If your friend Tim gives you a SIP URL as sip: 89755@192.246.69.223 then you can fill in as
89755@192.246.69.223.
If your friend Felix gives you a SIP URL as sip: felix@iptel.org then you can fill in as felix@iptel.org.
If your friend Greg gives you an IP address "192.246.56.56" only, then you can fill in as “192.246.56.56”.
In case, some of users may use DDNS, you can fill in with domain name as well.
Volume Control
Volume control helps you to adjust the voice quality of telephone to the best comfortable listening level.
Press “-“, the minus sign, to reduce either microphone or/both speaker’s level of your telephone.
Press “+“, the plus sign, to increase either microphone or/both speaker’s level of your telephone.
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