Maximum E1 Ports on Asterisk ?

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Asterisk Users 4 Comments

Hi All,

Just a little over thought. Sorry if someone already asked about this
before.

Is it possible to put all 16 Ports of E1 in One Asterisk Server ?

And if it’s not possible is there any suggestion or alternative for me to
use more than 320 lines of outgoing calls on One Asterisk Server ?

Thanks

ZH

4 thoughts on - Maximum E1 Ports on Asterisk ?

  • On Wed, Dec 22, 2010 at 8:50 AM, Zoel Hairi – Yahoo
    wrote:

    Zoel

    It is possible to do what you are asking. In general the issue is
    raised about having “all your eggs in one basket” where one server or
    hardware failure can drop all of your lines for a period of time.
    External solutions like Xorcom and Redfone are great ways of
    abstraction. The concurrent call load on a server relies on the work
    to be done on each call. If you are using multiple codecs and
    recording the calls in another file format with other complex dialplan
    or AGI scripts then one server may not handle the calls well. If
    everything is ALAW and just dialing though then this would not be a
    problem for one server. If you search the list for “sizing”
    “concurrent” and “load” you will find more information. One very nice
    thing is that testing is very easy with or without the E1 hardware,
    try running the TDMoE channels between two servers and run a SIPp or
    other test to see the issues in a lab.

    ~~~ Andrew “lathama” Latham
    href=”mailto:lathama@gmail.com”>lathama@gmail.com ~~~

  • href=”mailto:asterisk-users-bounces@lists.digium.com”>asterisk-users-bounces@lists.digium.com
    [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Zoel Hairi –
    Yahoo
    Sent: Wednesday, December 22, 2010 5:50 AM

    Hi All,

    Just a little over thought. Sorry if someone already asked about this
    before.

    Is it possible to put all 16 Ports of E1 in One Asterisk Server ?

    And if it’s not possible is there any suggestion or alternative for me to
    use more than 320 lines of outgoing calls on One Asterisk Server ?

    Thanks

    ZH

    ============================

    The general answer is “Yes, maybe”. I suggest you look at the Xorcom.com
    website for their load test data. Using a well sized server with “best
    practice” tweaks is important.

    It appears that bigger is not always better. For instance it seems to hurt
    or at least give no benefit to use a quad core processor. We just ran tests
    that indicates

    Xorcom’s “3000” model would handle 16 CAS T1s.

    CAS T1s produce a very high interrupt rate. PRI T1s don’t cause nearly as
    high rate. The right choice of cache, motherboard, processor and “tweaks”,
    are essential. You would be “leading the pack”. I think.

    .Cary Fitch