The example in Table 1 and Table 2 is the same as the one in Transcode G.711 to G.729A and Convert DTMF Inband Tones to RFC2833 but in addition to the transcoding G.711 to G.729A,
Unable to show "metadata-from": No such page "_space_variables"
s must also be prepared for fax calls that are handled with G.711 on Carrier 1 and using T.38 (Fax Relay) on Carrier 2. Either Unable to show "metadata-from": No such page "_space_variables"
s, or Carrier 2 may detect the fax tone and initiate a modification of its media stream that agrees with the Fax Tone Treatment setting in the Unable to show "metadata-from": No such page "_space_variables"
's Codec Entry.Transcode G.711 to G.729A and G711 to T.38 for fax
Configuration | Value | |
|---|---|---|
Carrier 1 Media G.711 w/Fax | Carrier 2 Media G.729A w/Fax | |
PSP | PSP-Carrier1 | PSP-to-Peer |
Silence Factor | 40 | 40 |
Voice Initial Playout Buffer | 10 | 10 |
TOS | 0 | 184 |
Data Initial Playout Buffer | 50 | 50 |
Codec Entry 1 | G711-DEFAULT | G729A-DEFAULT - FaxViaT38 |
Codec Entry 2 | <none> | <none> |
Codec Entry 3 | <none> | <none> |
Codec Entry 4 | <none> | <none> |
AAL Payload Size | 47 | 47 |
T.38 No. Redundant Packets | 1 | 1 |
T.38 Low Speed No. Redundant Packets | 1 | 1 |
T.38 Max Bit Rate | 14.4 | 14.4 |
Data Rate Mgt Type | Type 2 | Type 2 |
Honor Remote Precedence | Disabled | Disabled |
P2P Transcode | Only | Only |
Codecs Allowed This Leg | G.711A, G.711U | G.729, T.38 |
Codecs Allowed Other Leg | (none selected) | (none selected) |
RTCP | Not selected | Not selected |
Silence Insertion Descriptor | Take defaults | Take defaults |
Digit Detect Send Enabled | Not selected | Not selected |
Transcode G.711 to G.729A and G.711/T.38 for Fax Codec Entries
Configuration | Value | |
|---|---|---|
| G711-DEFAULT | G729A-DEFAULT FaxViaT38 | |
Audio Encoding | G.711 | G.729A |
Fax Tone Treatment | <none> | Fax Relay |
Packet Size | 10 ms | 10 ms |
Fax Treatment Failure Handling | Continue | Continue |
G.711 Law | Law from other leg |
|
Modem Tone Treatment | None | None |
Modem Treatment Failure Handling | Continue | Continue |
DTMF Relay | None | None |
Overview
Content Tools