Same for E1 as well unless your operator is giving mfcr2 on cas. Mitul On Jul 26, 2012 9:17 AM, "Jorge Mendoza" <jmendo...@tcc.com.pe> wrote:
> Thank you Mitul for your answer. > Yes, we have tested e&m before and it works. But I don't know why. That is > what I don't understand. You said that E&M signalling does not have > separate signalling channel, that is true for the T1 but not for E1. My > understanding is that E1 CAS pass the E&M information in the bits abcd of > channel 16, the signalling channel. > Regards > -- > Jorge Mendoza > > ------------------------------ > *From: *"Mitul Limbani" <mi...@enterux.in> > *To: *"Asterisk Users Mailing List - Non-Commercial Discussion" < > asterisk-users@lists.digium.com> > *Sent: *Wednesday, 25 July, 2012 8:15:25 PM > *Subject: *Re: [asterisk-users] Dahdi+Redfone+Channel Bank+E&M > > E&M signalling do not have seperate signalling channel. > > Configure as e&m=1-31 > > Mitul > On Jul 26, 2012 6:40 AM, "Jorge Mendoza" <jmendo...@tcc.com.pe> wrote: > >> Hi, >> >> We are trying to connect an Asterisk server with a Channel Bank with E&M >> interfaces using a RedFone TDMoE device. >> The CB have a E1 CAS interface. >> OS: Ubuntu Server 11.10 64 bits >> dahdi: dahdi-linux-complete-2.6.1+2.6.1 >> >> Redfone configuration: >> /etc/redfone.conf >> >> [span1] >> framing=cas >> encoding=hdb3 >> >> System configuration: >> /etc/dahdi/system.conf >> >> dynamic=ethmf,eth0/00:50:c2:65:e0:64/0,31,1 >> dynamic=ethmf,eth0/00:50:c2:65:e0:64/1,31,0 >> >> e&me1=1-15,17-31 >> dchan=16 >> >> alaw=1-31 >> >> loadzone = fr >> defaultzone = fr >> >> Error message: >> ======================================================== >> # dahdi_cfg -vvvvv >> >> Changing signalling on channel 1 from Unused to E & M E1 >> Changing law on channel 1 from Mu-law to A-law >> DAHDI_CHANCONFIG failed on channel 1: Invalid argument (22) >> Selected signaling not supported >> Possible causes: >> e&me1 signaling is being used on a T1 line (use e&m) >> RBS signaling is being used on a E1 CCS span >> Signaling is being assigned to channel 16 of an E1 CAS span >> ========================================================= >> >> I don't understand the last possible cause mentioned: "Signaling is being >> assigned to channel 16 of an E1 CAS span", because the dchan is channel 16. >> Where is the error? >> Thank you. >> -- >> Jorge Mendoza >> >> -- >> _____________________________________________________________________ >> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> New to Asterisk? Join us for a live introductory webinar every Thurs: >> http://www.asterisk.org/hello >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users >> > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
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