MISDN » History » Version 4
laforge, 02/19/2016 10:48 PM
bs11-abis -> OpenBSC
| 1 | 1 | laforge | mISDN is the latest incarnation of a Linux in-kernel ISDN stack. |
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| 3 | You can find more information about mISDN at http://www.misdn.org/ |
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| 5 | 4 | laforge | The [[OpenBSC]] project uses mISDN as a foundation |
| 6 | * to drive the HFC-E1 card, using the hfcmulti.ko driver |
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| 7 | * to handle the TEI assignment procedures on the Abis interface |
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| 8 | * to offer a sockets based kernel/userspace interface for the actual BSC code |
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| 9 | 1 | laforge | |
| 10 | Unfortunately, there are a number of subtle differences between Q.921 and the way how Abis utilizes |
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| 11 | 2 | laforge | the E1 physical link, and as a result mISDN could not be used unmodified to drive Abis. We have developed |
| 12 | 1 | laforge | some patches that eventually were merged into the mISDN project. Starting from kernel 2.6.30, you do |
| 13 | no longer need to patch it to support the A-bis layer2. |
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| 14 | 2 | laforge | SDN mainline. |
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| 16 | 4 | laforge | |
| 17 | h2. Configuration |
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| 19 | 1 | laforge | |
| 20 | please make sure to load the hfcmulti Linux kernel module using the option "dslot=1" parameter. If |
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| 21 | you fail to do so, the timeslot for signalling will be 15 (whereas the BTS uses 1). |
