Hi guys. I upgraded my platform from 1.6.2 to 1.8 with chan_dahdi. All is fine, but I can?t detect dtmf numbers on chan_dahdi dial out calls, but on sip calls are fine. Has any body solved this issue? Thanks in adavance this is my config. Asterisk 1.8.6.0 DAHDI Version: 2.5.0.1 Echo Canceller: HWEC Libss7 1.0.2 extensions.conf [out] exten => 123,1,Answer() exten => 123,2,Set(CHANNEL(language)=cs) exten => 123,n,Read(ACCEPT,acepta-cri,1,,,8) exten => 123,n,NoOp(${ACCEPT}) exten => 123,n,Hangup() debugI -- Attempting call on DAHDI/G1/0971200168 for 123 at out:1 (Retry 1) [1] Unhandled optional parameter 0x2d 'Unknown' [1] [[1] 0x0 [1] 0x64 [1] ] [1] Unhandled optional parameter 0x39 'Parameter Compatibility Information' [1] [[1] 0x2d [1] 0xc0 [1] ] -- Executing [123 at out:1] Answer("DAHDI/31-1", "") in new stack -- Executing [123 at out:2] Set("DAHDI/31-1", "CHANNEL(language)=cs") in new stack -- Executing [123 at out:3] Read("DAHDI/31-1", "ACCEPT,acepta-cri,1,,,8") in new stack -- Accepting a maximum of 1 digits. -- <DAHDI/31-1> Playing 'acepta-cri.gsm' (language 'cs') -- User entered nothing. -- Executing [123 at out:4] NoOp("DAHDI/31-1", "") in new stack -- Executing [123 at out:5] Hangup("DAHDI/31-1", "") in new stack == Spawn extension (out, 123, 5) exited non-zero on 'DAHDI/31-1' -- Hungup 'DAHDI/31-1' [Sep 16 11:01:55] NOTICE[3251]: pbx_spool.c:366 attempt_thread: Call completed to DAHDI/G1/0971200168 outgoing call file. Channel: DAHDI/G1/0971200168 CallerID: 0971200168 MaxRetries: 2 RetryTime: 60 WaitTime: 30 Context: out Extension: 123 Priority: 1 archivo /etc/dahdi/system.conf # Span 1: TE4/0/1 "T4XXP (PCI) Card 0 Span 1" B8ZS/ESF RED span=1,1,0,ccs,hdb3 # termtype: te bchan=1-15,17-31 dchan=16 #bchan=1-31 # Global data loadzone = us defaultzone = us /etc/asterisk/chan_dahdi.conf [trunkgroups] trunkgroup => 1,16 spanmap => 1,1,1 [channels] language=es context=ss7 group=1 echocancel=no signalling=SS7 ss7type = itu ss7_explictacm=yes ss7_called_nai=dynamic ss7_calling_nai=dynamic ss7_internationalprefix = 00 ss7_nationalprefix = overlapdial=yes relaxdtmf=yes networkindicator=national callwaiting=yes threewaycalling=yes transfer=yes canpark=yes cancallforward=yes callreturn=yes facilityenable=yes inmediate=yes jitterbuffers=4 jbenable = yes jbmaxsize = 200 jbresyncthreshold = 1000 jbimpl = fixed ; or "adaptive" jblog = no linkset = 1 pointcode = XXXX adjpointcode = XXXX defaultdpc = XXXX ;;1er E1 cicbeginswith = 1 sigchan = 16 channel=1-15 cicbeginswith = 17 channel = 17-31