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| BusinessPhone BusinessPhone Support |
| Tags: 400, btud, gateway, interfacing, vegastream, voip |
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| BusinessPhone BusinessPhone Support |
| Tags: 400, btud, gateway, interfacing, vegastream, voip |
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 01-07-2007, 07:40 AM | #1 (permalink) |
| Junior Member | BTU-D Interfacing to VegaStream 400 VoIP gateway Well I got past my initial difficulties in setting up my old BP250, now I am stuck at actually using it to make calls!  I got my hands on a VegaStream VoIP gateway which has four T1/E1 ports on one end and Ethernet/SIP on the other. I was thinking "how difficult can it be to setup?" - but after a couple of days of banging my head against the wall, i am getting nowhere... The cabling seems OK but when doing a ISDN trace on the Vega, I am getting no rx traces. And on the Ericsson end I am geting a "14" on t link supervisor. + "loss of multiframe sync" error. I checked the signals on a scope, and everything seems ok. I have connected as follows: LA1 -> RX+ = 4 LB1 -> RX- = 5 LA2 <- TX+ = 1 LB2 <- TX- = 2 The vega says it attempts to establish layer 2 but fails. What could this be? I know there are two prom versions and I think I have the ones for Swedish CAS, but would that make it fail to even establish layer 2? Anyone with experience of any similar setup? Ideas, hints or tips greatly appreciated! |
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| 01-07-2007, 11:13 AM | #2 (permalink) |
| Junior Member | Prom versions The proms I was referring to are LZY2032212/1 Prom-set for BTU-D CAS,MFC/MFE LZY2032213/1 Prom-set for BTU-D ISDN (PRA) I think I have the first version - but what I am wondering is if "CAS" is NOT ISDN? Is it really completely different, and thus not interfacable to a typical ISDN pri card or unit? What is the difference? Also there are many revisions of the proms? Differences there? Another thing: If I get the other "13" prom, will I then see a choice of "euro ISDN" under RASC? |
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| 01-08-2007, 04:59 PM | #3 (permalink) |
| Junior Member | CAS vs. ISDN Apparently it's about CAS definatley not the same as ISDN... I found something about "P7/P8, the Swedish National CAS Protocol" - but what does it all mean? There is a bunch of choices on the vega such as the ones below. I am trying to get the right Proms (anyone have R13A BTU-D PRA prom files?) But is there a combo of settings where one can get the CAS proms to talk to ordinary PRI interfaces? Network type ETSI ATT DMS DMS_M1 NI QSIG RBS Line encoding B8Z AMI HDB3 Framing ESF SF CRC4 PCM30 |
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| 01-10-2007, 03:47 AM | #7 (permalink) |
| Junior Member | It's somewhat tricky as the PROMSs say RYS 103 512/1 R5E P16 RYS 102 512/2 R5E P15 Which make them CAS proms i believe? The front on the board says "Equiped with LZY-203-2212/1 R1C" which does not necesarily have anything to do with the actual PROMS! What is the CAS PRI difference anyway? I mean on the layer 1 and layer 2 level... Do you by any chance also have PROM-file for ELU-D I have a board without a prom... I have a PROM burner in the basement somewhere - I will try to dig it out! The prom is a M27C1001-15F1 - EPROM; 1 MBIT UV EPROM; 5V; 150ns What range of proms are needed for burning? Thanks! |
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| 01-10-2007, 02:55 PM | #8 (permalink) |
| Junior Member | Well, it's a CAS PRI. More info about CAS you can find on http://en.wikipedia.org/wiki/Channel...ated_Signaling and PRI ISDN http://en.wikipedia.org/wiki/ISDN. In my opinion you should use ISDN signalling for integration (better chance to work). But it will involve some work on BP to configure BTU-D card. If you want, i can send you instruction how to change from CAS to ISDN. Also, check your email. Zoran |
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| 01-12-2007, 08:17 AM | #9 (permalink) |
| Junior Member | Hello! Well I got somewhat further - I got ahold of some PRI proms (but not the lastest version) and I am much further - both sides say "link up" but i have not managed to make calls yet - also there seems to be a wierd bug with the Vega recieving giberish from the numbers -eg. when i dial 123 the vega sees 030303. I can also dial in now but not answer the phone! And nothing comes out on the ISDN trace when i pick up the handset... hmmmmm |
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| 01-13-2007, 12:55 PM | #10 (permalink) |
| Junior Member | Well still not there... I have the R12 PRA proms, and I think there is a later version. I wonder what the difference is there? It apears that the PBX thinks it's number is From: "00000000000000000000", someone said that the PSTN provider normally gives a PBX it's ID/number. Is that so? And is that something I can set with RASC? And how that that work with the inbound calls? How would one set up the adressing using RASC? More to follow! |
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