Peer doesn’t answer

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Asterisk Users 9 Comments

Hi all,

i’m implementing an asterisk server that will have several peers connected
by satellite links.
When qualify=yes or some value (from 3000 to 50000), ‘sip show peers’ shows
the peer as unreachable. In this case i can place calls from the phone in
the satellite link, but can’t call to it.
When i turn off qualify, the status changes to unmonitored. In this case, I
can make calls in both directions but the call is never established. The
phone keeps ringing until ‘ring time’ expires even when I answer the call
on the phone/softphone.

Any thoughts?


9 thoughts on - Peer doesn’t answer

  • It is a satellite connection, so ping is about 500ms. I know it is not ok
    to keep a normal conversation, that is not the point.

    On Sun, Jan 15, 2012 at 10:34 PM, Flavio Miranda

  • basically CLI shows

    SIP/X called SIP/Y

    I answer the call on Y but X keeps ringing and then both hangup.

  • Unless you are doing test with SIP under adverse environmet, that is not the point, but, if you intend to have Communication, you should worry about this detail.
    Basic infra-estructure is the first thing to think in any new project.

    Good luck!

  • the client is aware of the adverse environment and this is the only
    solution for him

    On Mon, Jan 16, 2012 at 9:00 AM, Flavio Miranda

  • Hi Arlen,

    I’m interested in seeing what setup you settled on to get decent voice quality over the Sat link? Which codec are you using, and what is the bandwidth usage?. Are you doing just one concurrent call, Or multiple?.

    AJ Stanfield

  • on server side no special configuration is needed.
    To have qos on the sat link, we contact sat link operator, and I think this
    is the only way to do it.
    The codec is g729. I´m not sure about the bandwidth, I think we have about
    64Kbps allocated, because we almost don´t have concurrent calls.
    The quality is very good, you listen everything the other part says, but
    delayed. From landline to sat link, delay is about 2 seconds. With 2way sat
    link, it goes to 4, 5 seconds.