Voip Function; Tcp/Udp/Ip Protocol Processing Function; Ethernet Control Function; Fax Relay Function - Davolink DV-201DM User Manual

DV-201DM for H.323 & SIP

3.6. VoIP Function

H.323 protocol provides voice service through IP network by way of sending digital
voice-data packetized and encoded via IP network to process its calls. This function is
complied with ITU-T : H.323 Recommendation.
SIP is a text-based protocol that is based on HTTP and MIME, which makes it suitable
and very flexible for integrated voice-data applications. SIP is designed for real-time
transmission, uses fewer resources and is considerably less complex than H.323. Its
addressing scheme uses URLs and is human readable.

3.7. TCP/UDP/IP Protocol Processing Function

TCP/UDP/IP Protocol Processing Function processes various Protocols like TCP
complying with RFC793, UDP with RFC768 and IP Protocol with RFC791.

3.8. Ethernet Control Function

Ethernet Control Function is to process MAC, Ethernet protocol or IEEE 802.3
Protocol and perform ARP for TCP/IP communications with CSMA/CD data network.

3.9. FAX Relay Function

FAX Relay Function is to send Facsimile Data instead of voice data through
packetized network so that FAX data may be packetized and terminated via

3.10. Console Command I/O Function

Console Command I/O Function is to operate and manage the equipment through the
console at the site in which the equipment is installed. It decodes a command typed in
the console to perform the operation.

3.11. Telnet Remote Control Function

Telnet Remote Control Function is for an operator to access the equipment using
RFC854 Telnet Protocol in a remote system for operation and management. The
operator may see and maintain the system via access through Telnet from a remote
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internet.