Cisco Systems ATA 188 Manuale Utente
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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (H.323)
OL-4008-01
Chapter 1 Cisco Analog Telephone Adaptor Overview
Software Features
Software Features
The Cisco ATA supports the following protocols, services and methods:
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Voice Codecs Supported
The Cisco ATA supports the following voice codecs (check your other network devices for the codecs
they support):
they support):
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G.711µ-law
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G.711A-law
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G.723.1
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G.729
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G.729A
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G.729B
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G.729AB
Additional Supported Signaling Protocols
In addition to H.323, the Cisco ATA supports the following signaling protocols:
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Session Initiation Protocol (SIP)
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Skinny Client Control Protocol (SCCP)
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Media Gateway Control Protocol (MGCP)
H.323 and SIP share the same software image. SCCP and MGCP also share a software image, which is
separate from the H.323/SIP image. If you wish to perform a cross-protocol upgrade from H.323 to
another signaling image, see the
separate from the H.323/SIP image. If you wish to perform a cross-protocol upgrade from H.323 to
another signaling image, see the
.
Other Supported Protocols
Other protocols that the Cisco ATA supports include the following:
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802.1Q VLAN tagging
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Cisco Discovery Protocol (CDP)
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Domain Name System (DNS)
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Dynamic Host Configuration Protocol (DHCP)