3. Attach Positive Voice Detection receiver to channel using the Resource Connect 0x0127 message.
AIBs
A: Span/Channel (channel to attach PVD function)
B: Slot (same DSP card as Echo Cancel receiver).
Mandatory TLV
Resource Type = PVD/AMD (0x0109)
Optional TLVs (to override default card parameters)
4. When call is complete, disconnect Echo Canceller using the Resource Disconnect 0x0128 message.
AIBs
Source Channel: Span/Channel
Mandatory TLV
Resource Type = Echo Cancel (0x0108)
Optional TLVs
None
5. Disconnect PVD receiver using the Resource Disconnect 0x0128 message.
AIBs
Source Channel: Span/Channel
Mandatory TLV
Resource Type = PVD/AMD (0x0109)
Optional TLVs
None
Example Call Trace
X->H
[00 0d 00 40 00 00 ff 00 01 0d 03 00 20 00 00]
H->X
[00 0d 00 ba 00 01 ff 00 01 0d 03 00 20 00 01]
X->H
[00 07 00 ba 00 01 ff 00 10]
Park Channel span/channel 20/00
H->X
[00 12 00 bf 00 02 ff 00 02 0d 03 00 20 00 0d 03 00 20
00 00]
X->H
[00 07 00 bf 00 02 ff 00 10]
X->H
[00 0d 00 40 00 01 ff 00 01 0d 03 00 20 01 00]
H->X
[00 0d 00 ba 00 03 ff 00 01 0d 03 00 20 01 01]
X->H
[00 07 00 ba 00 03 ff 00 10]
Park Channel span/channel 20/01
H->X
[00 12 00 bf 00 04 ff 00 02 0d 03 00 20 01 0d 03 00 20
01 00]
X->H
[00 07 00 bf 00 04 ff 00 10]
Connect span/channel 20/00 and span/channel 20/01
H->X
[00 11 00 00 00 05 ff 00 02 0d 03 00 20 00 0d 03 00 20
01]
X->H
[00 07 00 00 00 05 ff 00 10]
Resource Connect 20/00- Echo Canceller
H->X
[00 17 01 27 00 00 ff 00 02 0d 03 00 20 00 01 01 ff 00
01 06 02 00 02 01 08]
X->H
[00 19 01 27 00 00 ff 00 10 00 02 0d 03 00 20 00 01 01 04 00
01 06 02 00 02 01 08]
Record File Start 20/00
H->X
[00 46 01 1e 00 06 ff 00 02 0d 03 00 20 00 01 01 ff 00
06 05 e0 00 04 00 dc 5b 17 05 e1 00 02 00 01 05 e2 00
13 00 01 00 02 2f 50 61 74 45 63 68 6f 2f 6d 79 2e 72
61 77 05 e9 00 02 02 26 05 fb 00 01 ca 05 e6 00 01 0c]