Sdp Payload Types; Nat Support Parameters - ATCOM AT820 User Manual

AT820 Series User Manual

5.3.3 SDP Payload Types

The configured dynamic payloads are used for outbound calls only where the SPA
presents the SDP offer. For inbound calls with a SDP offer, SPA will follow the caller's
dynamic payload type assignments.
A. AVT Dynamic Payload---AVT dynamic payload type. Default to 101.
B. G729ab Dynamic Payload---G729ab dynamic payload type. Default to 18.
C. G726 Dynamic Payload---G726 dynamic payload type. Default to 108.
D. G726 Mode---G726 codec code rate, which can be 16kBit/s, 24kBit/s, 32kBit/s and
40kBit/s.
E. iLBC Dynamic Payload---iLBC dynamic payload type. Default to 98.
F. iLBC Mode---iLBC codec code rate, which can be 13.3kbit/s, 15.2kbit/s.
G. G711a Codec Name---G711a codec name used in SDP. Default to PCMA.
H. G711u Codec Name---G711u codec name used in SDP. Default to PCMU.
I. AVT Codec Name---AVT codec name used in SDP. Default to telephone-event.
J. G722 Codec Name---G722 codec name used in SDP. Default to G722.
K. G723 Codec Name---G723 codec name used in SDP. Default to G723.
L. G723 Mode---G723 codec code rate, which can be 6.3kbit/s, 5.3kbit/s.
M. G726 Codec Name---G726 codec name used in SDP. Default to G726.
N. G729ab Codec Name---G729ab codec name used in SDP. Default to G729.
O. iLBC Codec Name---iLBC codec name used in SDP. Default to iLBC.

5.3.4 NAT Support Parameters

A. Enable Stun: Whether to use stun to discover NAT mapping or not.
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