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E1 versus ISDN PRI

Viewing 8 posts - 1 through 8 (of 8 total)
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  • #33448 Reply
    John
    Guest

    My company is planning for E1 or ISDN PRI connectivity to our EPABX.Which is better ? What are the advantages of each?

    #33449 Reply
    Stavros
    Guest

    1ISDN PRI=2,048Mbps=1E1=32x64Kbps telephone lines

    as simple as that

    #33450 Reply
    Raghav rao
    Guest

    1E1=2.048Mbps
    E1_R2 = 30x64kpbs channels.This is Channel associated signaling.

    E1_PRI= 31×64 kpbs channels with common channel signaling.

    #33451 Reply
    John
    Guest

    My query is with the regards to the features difference for the users.

    #33452 Reply
    AnnChoon Pan
    Guest

    E1 trunk is a transmission link. Can be used to interconnect 2 PABXes and provide Voice VPN between 2 sites.

    PRI is an ISDN protocol that will run over E1. Normally PRI connects PABX to PSTN.

    So in your case, if you PABX connects to PSTN, then it has to be PRI (but you will see that physically it looks the same as E1 interface).

    But if you need to connect 2 PABXes in 2 diff locations, then use E1 trunk.

    Number of channels wise is not important as they are similar and explained by the people above.

    #33453 Reply
    John. T. Mathai
    Guest

    Thanks that was a good explanation.

    #33454 Reply
    Juan Holz
    Guest

    With PRI you get faster connection times and flexibility in deciding how many lines are for outgoing or incoming lines. If you can get PRI go for it.

    #33455 Reply
    John
    Guest

    That’s true , faster connection .Thanks

Viewing 8 posts - 1 through 8 (of 8 total)
Reply To: E1 versus ISDN PRI
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