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Application Notes
Frequently Asked Questions
What’s the factory IP address of a Prodys codec?
Quantum and Ikusnet default IP configuration is DHCP, so if a codec is booted when connected to a network with a DHCP server, this will assign a free IP address to the codec in the established DHCP range.
If there is no DHCP server installed in the network, the default address 192.168.100.100 will be assigned.
How to make a call using SIP?
The SIP server is a very useful tool of the SIP protocol since it manages the protocol and call routing in the network regardless of its location, saving the inconvenience of opening ports and NAT configuration at both ends of the communication.
The SIP server parameters must be correctly filled in before activating it so that the equipment can be registered and subsequently connected. If registration with the SIP server fails due to misconfiguration or any other cause, the equipment will not be able to connect.
The parameters are as follows:
- Server IP: IP address or a host.domain type name of the SIP server.
- User Name: Your alias on the Internet regardless of your current IP address.
- Auth. User: This alias identifies you to other SIP participants.
- Auth. Pass: Some SIP servers require authentication before proceeding with SIP user registration.
To establish a call between two devices using SIP, simply enter the username in the call menu. If everything is configured correctly, the devices will connect.
What scale do VU meters use?
Prodys Equipment uses the dBFS scale in the VU meters to indicate loudness.
dBFS stands for decibels relative to full scale. It’s a unit of measurement used in digital audio systems to indicate the level of a signal compared to the maximum possible digital level (full scale).
- 0 dBFS is the maximum possible level in a digital system (no headroom left).
- All other levels are negative numbers, showing how far below the maximum they are (e.g., -6 dBFS means 6 decibels below full scale).
Basically, it tells you how loud the signal is compared to the highest level your system can handle without clipping or distortion.
A tone at full scale would be 0 dBFs; the absolute maximum would be a square wave signal at maximum amplitude (i.e., a saturated signal), which corresponds to +3 dBFs.