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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (SIP)
OL-3410-01
Chapter1 Cisco Analog Telephone Adaptor Overview
Software Features
Additional Supported Signaling Protocols
In addition to SIP, the Cisco ATA supports the following signaling protocols:
•H.323
•Skinny Client Control Protocol (SCCP)
•Media Gateway Control Protocol (MGCP)
SIP and H.323 share the same software image. SCCP and MGCP al so share a software image, which is
separate from the SIP/H.323 image. If you wish to perform a cross-protocol upgrade from SIP to another
signaling image, see the “Upgrading the Signaling Image from a TFTP Server” section on page8-1.
Other Supported Protocols
Other protocols that the Cisco ATA supports include the following:
•802.1Q VLAN tagging
•Cisco Discovery Protocol (CDP)
•Domain Name System (DNS)
•Dynamic Host Configuration Protocol (DHCP)
•Internet Control Message Protocol (ICMP)
•Internet Protocol (IP)
•Real-Time Transport Protocol (RTP)
•Transmission Control Protocol (TCP)
•Trivial File Transfer Protocol (TFTP)
•User Datagram Protocol (UDP)
Cisco ATA SIP Services
For a list of required SIP parameters as well as descriptions of all supported CiscoATA SIP services and
cross references to the parameters for configuring these services, see Chapter4, “Basic and Additional
SIP Services.”
These services include the following features:
•IP address assignment—DHCP-provided or statically configured
•Cisco ATA configuration by means of a TFTP server, web browser, or voice configuration menu.
•VLAN configuration
•Cisco Discovery Protocol (CDP)
•Low-bit-rate codec selection
•User authentication
•Configurable tones (dial tone, busy tone, alert tone, reorder tone, call waiting tone)
•Dial plans
•Network Address Translation (NAT) Gateway
•NAT/Port Address Translation (PAT) translation