Voice modems can send and receive voice recordings through analog Internet connections. They are commonly used for voice chats, voice over IP (VoIP), and other forms of Internet telephony. They may include their own phone dialers or use the dialer on the operating system. Most models also have answering machine functions, allowing the Internet connection to practically replace the telephone line.
Internal voice modems are mounted on expansion slots in the PCI or ISA rack in desktop computers, and the PCMCIA slot in laptops.
They usually have voice connectors that connect to compatible pin-outs on the motherboard.
They take up no desk space, but can be hard to recover and troubleshoot.
External voice modems
External voice modems plug into the computer through the USB or serial port.
Most models have speakers for answering machine pickups and status lights indicating power connection speed, call progress, and other connection information.
They may also have small LCD screens for displaying numbers and caller ID information.
Security: Choose a voice modem with a firewall function to keep your conversations from getting tapped. If you have a firewall program installed in your computer, make sure the two programs do not conflict or affect each other's operations. Interface: Choose a voice modem that connects to available slots in your computer. Serial modems are better for desktops because they can handle large transfers better than USB. External models are usually more sturdy and are suitable for long, frequent conversations.
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