Reference:Configuration/BRI/Protocol: Difference between revisions
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The signaling '''protocol''' for the ISDN interface is configured here. | |||
== Euro ISDN D-channel protocol: == | |||
{| | |||
|valign=top nowrap=true|'''EDSS1:''' | |||
| This type of signalling has gained worldwide acceptance for ISDN subscribers and, despite the name, is also common outside Europe. | |||
|} | |||
== QSIG D-channel protocol: == | |||
This is a standardised signalling method mainly used to interconnect traditional PBXs. | |||
Unfortunately, there are several variants of the QSIG standard and various implementations; some conform more and some less to the standard. | |||
The gateways therefore support two different variants: | |||
{| | |||
|valign=top nowrap=true|'''QSIG ECMA1:''' | |||
| Using B-channel numbering (1-30) | |||
|- | |||
|valign=top nowrap=true|'''QSIG ECMA2:''' | |||
| Using timeslot numbering (1-15, 17-31) | |||
|} | |||
On T1 interfaces, both variations are identical, as the B-channels 1-23 correspond to timeslots 1-23. | |||
Please note that there are more settings relevant to QSIG on the [[Reference:Configuration/PRI/Interop| interfaces ''Interop'' page]]. | |||
== US D-channel protocol: == | |||
{| | |||
|valign=top nowrap=true|'''NI:''' | |||
| USA (National ISDN 1) | |||
|- | |||
|valign=top nowrap=true|'''5ESS:''' | |||
| USA (AT&T) | |||
|- | |||
|valign=top nowrap=true|'''DMS100:''' | |||
| USA (new standard) | |||
|} | |||
== Mode: == | |||
{| | |||
|valign=top nowrap=true|'''Point-to-Point:''' | |||
| Switches on the point-to-point connection. | |||
|- | |||
|valign=top nowrap=true|'''Point-to-Multipoint:''' | |||
| Switches on the point-to-multipoint connection. | |||
|} | |||
Latest revision as of 17:43, 26 January 2011
The signaling protocol for the ISDN interface is configured here.
Euro ISDN D-channel protocol:
| EDSS1: | This type of signalling has gained worldwide acceptance for ISDN subscribers and, despite the name, is also common outside Europe. |
QSIG D-channel protocol:
This is a standardised signalling method mainly used to interconnect traditional PBXs.
Unfortunately, there are several variants of the QSIG standard and various implementations; some conform more and some less to the standard.
The gateways therefore support two different variants:
| QSIG ECMA1: | Using B-channel numbering (1-30) |
| QSIG ECMA2: | Using timeslot numbering (1-15, 17-31) |
On T1 interfaces, both variations are identical, as the B-channels 1-23 correspond to timeslots 1-23.
Please note that there are more settings relevant to QSIG on the interfaces Interop page.
US D-channel protocol:
| NI: | USA (National ISDN 1) |
| 5ESS: | USA (AT&T) |
| DMS100: | USA (new standard) |
Mode:
| Point-to-Point: | Switches on the point-to-point connection. |
| Point-to-Multipoint: | Switches on the point-to-multipoint connection. |