Hi,
If you were to lead someone (with a UI) through the process of
configuring a a Digium T1/E1 card with asterisk and a T1/E1 trunk from a
provider, would the following questions cover most scenarios? i.e. given
the following questions and assumptions, would the configurations below
work for most people?
- Is it a E1 or T1 line (i.e. are you in Europe or America)?
- If it's a T1 line, is it PRI ISDN or E&M?
- If it's a T1 does it use Extended Super Frame (ESF/D5) framing or
is it Super Frame (SF/D4) framing?
- If it's an E1, does it use High-density Bipolar-3 (HDB3) or
Automatic Mark Inversion (AMI) coding?
And given the following assumptions:
- If it's an E1 voice line, it's going to be PRI which implies CCS
framing
- ESF framing on a T1 generally implies B8ZS coding and SF implies
AMI coding
- If it's a T1 PRI, it's most likely a National 2 switch; if it's
an
E1 PRI, it's EuroISDN
- 0db LBO in most cases
- Most E1 lines use a crc
- Wink start is usually used with E&M signalling
You'd then have have a set of configurations like:
- T1, PRI, ESF
zaptel.conf:
span=1,1,0,esf,b8zs
bchan=1-23
dchan=24
zapata.conf:
switchtype=national
signalling=pri_cpe
context=incoming
group=1
channel=>1-23
- T1, PRI, SF
zaptel.conf:
span=1,1,0,d4,ami
bchan=1-23
dchan=24
zapata.conf:
switchtype=national
signalling=pri_cpe
context=incoming
group=1
channel=>1-23
- E1, PRI, HDB3
zaptel.conf:
span=1,1,0,ccs,hdb3,crc4
bchan=1-15
dchan=16
bchan=17-31
zapata.conf:
switchtype=euroisdn
signalling=pri_cpe
context=incoming
group=1
channel=>1-23
- E1, PRI, AMI
zaptel.conf:
span=1,1,0,ccs,ami,crc4
bchan=1-15
dchan=16
bchan=17-31
zapata.conf:
switchtype=euroisdn
signalling=pri_cpe
context=incoming
group=1
channel=>1-23
- T1, E&M, ESF
zaptel.conf:
span=1,1,0,esf,b8zs
e&m=1-24
zapata.conf:
signalling=em_w
context=incoming
group=1
channel=>1-24
- T1, E&M, SF
zaptel.conf:
span=1,1,0,d4,ami
e&m=1-24
zapata.conf:
signalling=em_w
context=incoming
group=1
channel=>1-24
Thanks,
Mark.
> Hi, > If you were to lead someone (with a UI) through the process of > configuring a a Digium T1/E1 card with asterisk and a T1/E1 trunk froma> provider, would the following questions cover most scenarios? i.e.given> the following questions and assumptions, would the configurationsbelow> work for most people? > > - Is it a E1 or T1 line (i.e. are you in Europe or America)? > > - If it's a T1 line, is it PRI ISDN or E&M? > > - If it's a T1 does it use Extended Super Frame (ESF/D5) framing or > is it Super Frame (SF/D4) framing? > > - If it's an E1, does it use High-density Bipolar-3 (HDB3) or > Automatic Mark Inversion (AMI) coding? > > > And given the following assumptions: > > - If it's an E1 voice line, it's going to be PRI which implies CCS > framing > > - ESF framing on a T1 generally implies B8ZS coding and SF implies > AMI coding > > - If it's a T1 PRI, it's most likely a National 2 switch; if it's an > E1 PRI, it's EuroISDN > > - 0db LBO in most cases > > - Most E1 lines use a crc > > - Wink start is usually used with E&M signalling > > > You'd then have have a set of configurations like: > > - T1, PRI, ESF > > zaptel.conf: > > span=1,1,0,esf,b8zs > bchan=1-23 > dchan=24 > > zapata.conf: > > switchtype=national > signalling=pri_cpe > context=incoming > group=1 > channel=>1-23 > > - T1, PRI, SF > > zaptel.conf: > > span=1,1,0,d4,ami > bchan=1-23 > dchan=24 > > zapata.conf: > > switchtype=national > signalling=pri_cpe > context=incoming > group=1 > channel=>1-23 > > - E1, PRI, HDB3 > > zaptel.conf: > > span=1,1,0,ccs,hdb3,crc4 > bchan=1-15 > dchan=16 > bchan=17-31 > > zapata.conf: > > switchtype=euroisdn > signalling=pri_cpe > context=incoming > group=1 > channel=>1-23 > > - E1, PRI, AMI > > zaptel.conf: > > span=1,1,0,ccs,ami,crc4 > bchan=1-15 > dchan=16 > bchan=17-31 > > zapata.conf: > > switchtype=euroisdn > signalling=pri_cpe > context=incoming > group=1 > channel=>1-23 > > - T1, E&M, ESF > > zaptel.conf: > > span=1,1,0,esf,b8zs > e&m=1-24 > > zapata.conf: > > signalling=em_w > context=incoming > group=1 > channel=>1-24 > > - T1, E&M, SF > > zaptel.conf: > > span=1,1,0,d4,ami > e&m=1-24 > > zapata.conf: > > signalling=em_w > context=incoming > group=1 > channel=>1-24 > > Thanks, > Mark.Not all E1 providers have crc4 turned on. Thanks, Steve