LevelOne VOI-8001 - Manual (Page 64)

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4.2.5.3 VoIP Package
/VoIP Setup/Advance Setup/VoIP Package
User can define the parameters relative about VoIP package on this page.
z Jitter Buffer(ms):
Define the Jitter buffer size, input range is from 20 to 200ms.
z VoIP DTMF Relay Mode:
Define the relay mode for DTMF signal:
„ In band: When local gateway detects a DTMF signal, it will not
decode it . The DTMF signal will been compress/decompress as
VoIP voice package.
„ Out band: When local gateway detects a DTMF signal, it will
decode it, and relay it as a data package separately. The remote
gateway will regenerate the DTMF signal after receive the DTMF
data package. System default is relay DTMF by out band mode.
z VoIP DTMF Relay Mode (Out band),:
Define 2 methods to relay DTMF when select Out band relay mode:
„ by SIP:RFC2833 (SIP protocol) or H.323:H.245 (H.323 protocol)
„ by SIP INFO (SIP protocol) or Q.931 (H.323 protocol)
z RFC2833: Payload number for DTMF[96~127]:
Define the DTMF token on RFC2833, input range form 96 to 127.