I have read the document about book ending, but need to look at a configuration example to better understand the steps in delivering a PRI across ethernet from site A to site B. Can anyone provide a sample config?
PRItoMainPBX-->916e-->NV1544-->Fiber-->NV1335-->916e-->PRIto2ndPBX
Thanks,
Blake
If the PBXs have a proprietary signaling method unique to the vendor that isn't either ISDN PRI or CAS robbed-bit then you're unlikely to be able to accomplish this with TA900 hardware. You'll need some form of pseudowire TDM-over-Ethernet. Adtran has this in their TA5000 chassis but that is several orders of magnitude overkill for this project. If there's a spare SFP in the switches, RADUSA makes a nifty device that will do it. I'm not sure of the rules here for referencing other vendors' hardware but Google is your friend. Keep in mind that the pseudowire will consume about 2 Mbps of the link 24/7 regardless of whether there is traffic on it. If there's limited bandwidth this could be an issue.
Exact configuration depends on your scenario, but this is very easily done. Variables include whether either or both 916e units will also be routing calls to the PSTN via a SIP provider, or if this is a strict tie-trunk scenario. If also routing to PSTN, do that first and then build the tie-trunk.
First figure out your dial plan. If all of the extensions at each PBX have the same leading digit and length it is a lot easier. For example Site A has extensions 2000-2999 and site B has extensions 5000-5999, then you would configure as follows:
At site A
Site B is the reciprocal of site A.
Considerations and gotchas:
Thanks for the information. I tried the above but came to the realization that the circuits in the customer's PBX do not act as PRI circuits with D-channels on the connection. The customer has a Nortel PBX with the T1 connection spanning from the main site NT7B74GA-93 card to the remote location NT7B74GA-93. Since they are not programmed as TDM-PRI slots, the above did not work. Is there a way for the 916e series to transport the T1 across ethernet like a 408e would without the use of the PRI and ISDN trunks?
Nortel Card-->T1-->916e-->NV1544-->fiber-->NV1335-->916e-->916e-->T1-->Nortel Card
If useful, the customer is currently using Transition SSDTF-100 media converters to transport the T1 from site to site. We are having to remove these due to fiber restrictions and to delivery lines on FXS ports for analog service.
Thanks,
Blake
If the PBXs have a proprietary signaling method unique to the vendor that isn't either ISDN PRI or CAS robbed-bit then you're unlikely to be able to accomplish this with TA900 hardware. You'll need some form of pseudowire TDM-over-Ethernet. Adtran has this in their TA5000 chassis but that is several orders of magnitude overkill for this project. If there's a spare SFP in the switches, RADUSA makes a nifty device that will do it. I'm not sure of the rules here for referencing other vendors' hardware but Google is your friend. Keep in mind that the pseudowire will consume about 2 Mbps of the link 24/7 regardless of whether there is traffic on it. If there's limited bandwidth this could be an issue.
B124jr,
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Thanks,
David