TELES ECOTEL, Руководство пользователя

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A D D I T I O N A L V O I P P A R A M E T E R S
C H A P T E R 1 4
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ECOTEL 3G 16.1. Revised: 2011.
The following specifications for Quality of Service correspond with RFC791 and RFC1349.
VoipEcl=<ms>
This parameter defines the required tail length for echo cancelation. The following values in ms are possible:
32
64 (default)
128
VoipT301=<sec>
An outgoing VoIP calls will be canceled in the state of Alerting (for H323) or Ringing (for SIP) if the number
of seconds entered has passed and there is no response from the IP or VoIP carrier.
VoipT303=<sec>
If this parameter is entered in a SIP profile, transmission of the INVITE is canceled after the number of seconds
entered has passed (default 10). The call can then be redirected, for example to PSTN. This improves the re-
liability of the system when an IP or VoIP carrier’s service fails.
EXAMPLE:
Redirect340DF:=A
MapAllA=9
[Voip:DF]
.....
VoipT303=5
VoipT304=<sec>
An outgoing VoIP calls will be canceled in the state of Setup Acknowledge (for H323) or Trying (for SIP) if
the number of seconds entered has passed and there is no response from the IP or VoIP carrier.
VoipT310=<sec>
An outgoing VoIP calls will be canceled in the state of Call Proceeding (for H323) or Session Progress (for
SIP) if the number of seconds entered has passed and there is no response from the IP or VoIP carrier.
Table 14.7 Quality of Service Values
Bit
Distribution
0 1 2 3 4 5 6 7
Precedence TOS MBZ
Bit Description
0-2 Precedence
3 TOS: 0=normal delay, 1=low delay
4 TOS: 0=normal throughput, 1=high throughput
5 TOS: 0=normal reliability, 1=high reliability
Table 14.6 Customized Parameters: VoIP Quality (continued)
VoIP Quality Parameters