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Add_workflow_for_techpubs
AUTH1UserResourceIdentifier{userKey=8a00a0c87befb553017c1aa3236500248a00a0c862eadf5e0163170affe7001b, userName='null'}
JIRAIDAUTHCHOR-1012511932
REV5UserResourceIdentifier{userKey=8a00a0c87befb553017c1aa3236500248a00a02355cd1c2f0155cd26cb8305e9, userName='null'}
REV6UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cb8305e9, userName='null'}
REV3UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cef20cbf8a00a02355cd1c2f0155cd26cb1f0553, userName='null'}
REV1UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cef20cbf8a00a0c86d7a8a62016d81e6ecae0008, userName='null'}

Panel

In this section:

Table of Contents
maxLevel3

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FieldDescription
Modem Passthrough

Specifies whether or not modem passthrough is enabled when using the G.711 codec.

If you wish to support modem calls, enable this option. When Disabled, the

Spacevars
0product
does not distinguish between voice and modem calls. When Enabled, and the
Spacevars
0product
detects a modem call, it switches to Modem Passthrough mode (based on G.711 codec).

Fax Passthrough

Controls whether or not the 

Spacevars
0product
supports G.711 faxing.

  • If you wish to force fax calls to use G.711 (uLaw/aLaw) codec, then Fax Passthrough must be Enabled. Also, G.711 must be the only codec in the
    Spacevars
    0product
    Media List. In this configuration, the 
    Spacevars
    0product
    will only offer/accept G.711 in the re-INVITE.
  • If you wish to support both G.711 and T.38 faxing simultaneously, the Fax Passthrough must be Enabled, and the
    Spacevars
    0product
    must be configured with both G.711 and T.38 codecs. Which faxing type is selected will depend upon the codecs offered/accepted in the re-INVITE.
  • If you wish to force fax calls to use T.38 codec, configure the Fax Passthrough to Disabled. The
    Spacevars
    0product
    must be configured for both G.711 and T.38 codecs. In this configuration, the 
    Spacevars
    0product
    will only offer/accept T.38 in the re-INVITE.


Info
titleNote

If the fax destination offers only T.38 in the re-INVITE, then the

Spacevars
0product
must be configured for both G.711 and T.38. As noted above, T.38 fax negotiation is possible whether Fax Passthrough is set to Enabled or Disabled.


CNG Tone Detection

Specifies whether or not the 

Spacevars
0product
detects Fax tones produced by the origination-side fax machine. CNG tone detection is required when Fax calls are received from TDM for a Fax server, and the voice call needs to be switched to a Fax call using T.38. If CNG Tone Detection is Enabled, the
Spacevars
0product
detects the Fax tone from TDM and switches to Fax mode (it will initiate a re-INVITE with T.38 support to the Fax Server). If CNG Tone Detection is Disabled, the
Spacevars
0product
will passthrough the Fax tones to the Fax server and the Fax server must detect the tones and initiate a re-INVITE to switch to Fax mode with T.38.

Info
titleNote

CNG Tone Detection is not applicable for

Spacevars
0product3
.


Fax Tone Detection


Note
titleWarning

Fax tone detection is not supported with the G.729 codec.

Specifies whether or not the 

Spacevars
0product
system will detect Fax tones produced by the terminating side fax machine. Fax tone detection (V.21 flags) is used when Fax calls are received from TDM to a Fax server and the voice call needs to be switched to a Fax call using T.38. If Fax Tone Detection is Enabled, the
Spacevars
0product
detects the Fax tone from TDM and switches to Fax mode (it will initiate a re-INVITE with T.38 support to the Fax Server). If Fax Tone Detection is Disabled, the
Spacevars
0product
will passthrough the Fax tones to the Fax server and the Fax server will have to detect them and initiate a re-INVITE to switch to Fax mode with T.38.


DTMF Signal to Noise

Sets the Signal to Noise Ratio that affects DTMF detection. Setting higher Signal-to-Noise ratio values reduces the chance of false detection; however, a setting can be too high for the amount of noise in an audio stream. Use this field to set a value in the range -3 dB to +6 dB. The default value for the field is 0 dBM.

Info
titleNote

DTMF Signal to Noise is not applicable for

Spacevars
0product3
.


DTMF Minimum Level

Sets the minimum signal level for DTMF detection; DTMF digits lower than the minimum are not detected. Valid entries: -48 to -14 dBm0. The default value of the field is -38 dBm0.

Info
titleNote

DTMF Minimum Level is not applicable for

Spacevars
0product3
.


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