Problems with PRI ISDN with AS5300 and PBX 3Com NBX100
Hi, someone had done a connection between a controller E1 with ISDN PRI of AS5300 and a PBX 3Com model NBX750, because I did the connection and configuration but the connection don´t function. I do not find documentation about the parameters of signalling, for exmple linecode, framming, clock source, I am using HDB3, QSIG, framming CRC4, clock source internal.
Re: Problems with PRI ISDN with AS5300 and PBX 3Com NBX100
I have noot done this, but let me guess as to what the problem probably is.
One of the two devices needs to be the network side of the connection and the other the user side. By default both sides would have been configured to eb user side. Since you have greater control on the Cisco side, make the changes to have it be the primary network. You should be able to turn on the isdn debugging and see the negotiation between the two.
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