User's Manual Part 2

Firmware Version 1.0.0.1 UCM6200 Series IP PBX User Manual Page 265 of 320
INTERNA LOPTIONS/RTPSETTINGS
Table 78: Internal Options/RTP Settings
RTP Start Configure the RTP port starting number. The default setting is 10000.
RTP End Configure the RTP port ending address. The default setting is 20000.
Strict RTP
Configure to enable or disable strict RTP protection. If enabled, RTP
packets that do not come from the source of the RTP stream will be
dropped. The default setting is "Disable".
RTP Checksums
Configure to enable or disable RTP Checksums on RTP traffic. The
default setting is "Disable".
ICE Support
Configure whether to support ICE. The default setting is enabled.
ICE is the integrated use of STUN and TURN structure to provide reliable
VoIP or video calls and media transmission, via a SIP request/ response
model or multiple candidate endpoints exchanging IP addresses and
ports, such as private addresses and TURN server address.
STUN Server
Configure STUN server address. STUN protocol is a Client/Server and
also a Request/Response protocol. It’s used to check the connectivity
between the two terminals, such as maintaining a NAT binding entries
keep-alive agreement. The default STUN Server is stun.ipvideotalk.com.
Valid format:
[(hostname | IP-address) [':' port]
The default port number is 3478 if not specified.
INTERNA LOPTIONS/PAYLOAD
The UCM6200 payload type for audio codecs and video codes can be configured here.
Table 79: Internal Options/Payload
AAL2-G.726
Configure payload type for ADPCM (G.726, 32kbps, AAL2 codeword
packing). The default setting is 112.
DTMF Configured payload type for DTMF. The default setting is 101.