[cisco-voip] one way audio after SIP cupover

[Ed Leatherman]

Something that tripped me up recently was more recent IOS-XE versions can
offer udp ports in the range 8000 to 48200 by default rather than usual
16384-32766, to allow for more sessions. Can cause trouble if you have
firewalls or ACL's configured with the old range.

https://www.cisco.com/c/en/us/td/docs/routers/access/4400/release/notes/isr4451rn.html#pgfId-176593

On Fri, Feb 2, 2018 at 6:47 PM, Jonatan Quezada <
jonatan.quezada at chemeketa.edu> wrote:

> I get that this is usually routing but, is it also routing when the issue
> is intermittent?
>
> our call flow is like so
>
> CentLink(Provider) ----siptrunk30Meg-PPP(IQ-private)---Cube---CUCM10.5,
> uccx,unity
>
> [image: Inline image 1]
>
> bonus facts, I have an operator who is in one of the two most affected
> buildings and she can recover the call after hold, resume,hold,resume
> sequence. then full rtp stream is there and she can hear and speak with
> caller.
>
> are there SIP state change timers I can adjust, I want to tread lightly
> though because out of all of our outreachs seperated by a metro ethernet
> hub and spoke topology and almost 30 buildings here on main campus only 2
> seem to be affected.
>
>
>
>
>
> --
> For immediate assistance please reach out to Chemeketa IT Help Desk at
> 5033997899 <(503)%20399-7899>
> -or-
> Visit the help center from your employee dashboard found here:
> *https://dashboard.chemeketa.edu/helpcenter/default.aspx
> <https://dashboard.chemeketa.edu/helpcenter/default.aspx>*
>
>
> Johnny Q
> Voice Technology Analyst - TelNet
> Chemeketa Community College
> Johnny.Q at chemeketa.edu
> Building 22 Room 131
> Work 5033995294 <(503)%20399-5294>
> Mobile 9712182110 <(971)%20218-2110>
> SIP 5035406686 <(503)%20540-6686>
>
> _______________________________________________
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>
>


-- 
Ed Leatherman
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