[asterisk-users] DTMF are not shown when dialed by PSTN phone

[mohammad aliasgari]

  Dear all,

having verbose level 5, and enabling dtmf logging in /etc/asterisk/logger.conf
console => notice,warning,error,debug,dtmf
I receive dtmf detected, in a SIP-PSTN call, as follows
[code][Nov 28 16:12:19] DTMF[2532]: channel.c:2351 __ast_read: DTMF begin '1' received on SIP/16001-00000000
[Nov 28 16:12:19] DTMF[2532]: channel.c:2361 __ast_read: DTMF begin passthrough '1' on SIP/16001-00000000
[Nov 28 16:12:19] DEBUG[2532]: chan_dahdi.c:1400 dahdi_digit_begin: Started VLDTMF digit '1'
[Nov 28 16:12:20] DTMF[2532]: channel.c:2283 __ast_read: DTMF end '1' received on SIP/16001-00000000, duration 280 ms
[Nov 28 16:12:20] DTMF[2532]: channel.c:2320 __ast_read: DTMF end accepted with begin '1' on SIP/16001-00000000
[Nov 28 16:12:20] DTMF[2532]: channel.c:2336 __ast_read: DTMF end passthrough '1' on SIP/16001-00000000
[Nov 28 16:12:20] DEBUG[2532]: chan_dahdi.c:1435 dahdi_digit_end: Ending VLDTMF digit '1'
[/code]


Why don't I receive DTMF that are dialed by a PSTN phone?

Thanks in advance,

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