2 ; TAPI Telephony Interface
8 ; Number of FXS ports (default: 2)
11 ; Create contexts per channel (default: off)
12 ;per_channel_context = off
14 ; Set tapi firmware file path
15 ;firmwarefilename = /lib/firmware/danube_firmware.bin
17 ; Set tapi bbd file path
18 ;bbdfilename = /lib/firmware/danube_bbd_fxs.bin
20 ; Set vmmc device path
25 ; Gain setting for the receive and transmit path.
26 ; The value is given in dB within the range (-24dB to +12dB), in 1 dB steps.
33 ; Line echo cancller valid types:
35 ; off LEC and echo suppressor turned off.
36 ; nlec LEC using fixed window; no echo suppressor.
37 ; wlec LEC using fixed and moving window; no echo suppressor.
38 ; nees LEC using fixed window and echo suppressor.
39 ; nfees LEC using fixed and moving window and echo suppressor.
44 ; If nlec or wlec is selected than size of the fixed window in narrowband (8 kHz) sampling mode
45 ; can be defined with:
46 ; A value of 0 defaults to: 16 ms if type is nlec or 8 ms if type is wlec:
48 ;echocancelfixedwindowsize = 0
50 ; If wlec is selected than size of the moving window in narrowband (8 kHz) sampling mode
51 ; can be defined with:
52 ; A value of 0 defaults to 8 ms.
54 ;echocancelnfemovingwindowsize = 0
56 ; If wlec is selected than size of the moving window in wideband (16 kHz) sampling mode
57 ; can be defined with:
58 ; A value of 0 defaults to 8 ms.
60 ;echocancelwidefixedwindowsize = 0
62 ; Activate or deactivate line echo cancller NLP (Non Linear Processor) if the LEC is active,
69 ; Jitter buffer valid types:
71 ; fixed Fixed jitter buffer.
72 ; adaptive Adaptive jitter buffer.
74 ;jitterbuffertype = fixed
76 ; Jitter buffer packet adaptation valid types:
78 ; voice Jitter buffer optimized for voice.
79 ; data Jitter buffer optimized for data.
80 ; datanorep Jitter buffer optimized for data but without doing packet repetition.
82 ;jitterbufferpackettype = voice
84 ; Following jitter buffer values can only be used with jitter buffer adaptive type:
85 ; Turns on or off jitter buffer adaptation:
87 ;jitterbufferadaptation = off
89 ; Scaling factor multiplied by 16; in adaptive jitter buffer mode, the target average playout delay is
90 ; equal to the estimated jitter multiplied by the scaling factor. The default value for the scaling factor
91 ; is about 1.4 (scaling=22), meaning that the target average playout delay is equal to the estimated
92 ; jitter. If less packets should be dropped because of jitter, the scaling factor has to be increased. An
93 ; increase in the scaling factor will eventually lead to an increased playout delay.
94 ; The supported range is 1 to 16 (16 up to 256).
96 ;jitterbufferscalling = 1
98 ; Initial size of the jitter buffer in time stamps of 125 us:
100 ;jitterbufferinitialsize = 125
102 ; Minimum size of the jitter buffer in time stamps of 125 us
104 ;jitterbufferminsize = 125
106 ; Maximum size of the jitter buffer in time stamps of 125 us
108 ;jitterbuffermaxsize = 125
112 ; Caller id valid standards:
114 ; telecordia Bellcore/Telcordia GR-30-CORE; use Bell202 FSK coding of CID information. (default)
115 ; etsifsk ETSI 300-659-1/2/3 V1.3.1; use V.23 FSK coding to transmit CID information.
116 ; etsidtmf ETSI 300-659-1/2/3 V1.3.1; use DTMF transmission of CID information.
117 ; sin SIN 227 Issue 3.4; use V.23 FSK coding of CID information.
118 ; ntt NTT standard: TELEPHONE SERVICE INTERFACES, edition 5; use a modified V.23 FSK coding of
120 ; kpndtmf KPN; use DTMF transmission of CID information.
121 ; kpndtmffsk KPN; use DTMF and FSK transmission of CID information.
123 ;calleridtype = telecordia
127 ; Voice activity detection:
129 ; on Voice activity detection on; in this case also comfort noise and spectral
130 ; information (nicer noise) is switched on.
131 ; g711 Voice activity detection on with comfort noise generation,
132 ; but without spectral information.
133 ; cng Voice activity detection on with comfort noise generation, but without silence compression
134 ; sc Voice activity detection on with silence compression,
135 ; but without comfort noise generation.
137 ;voiceactivitydetection = on
141 ; Timeout between dialed digits, in milliseconds, before placing the call.
147 ; Tone generator type (default: integrated)
148 ; integrated Use tapi tone generator
149 ; asterisk Use asterisk tone generator where possible
150 ; media Use media tone where possible
152 ;tone_generator = integrated