[cisco-voip] No Ringing on Some outbound Calls - at&t ipFlex

[Anthony Holloway]

If you are doing SIP Early Media, and the far side is not playing ringback
to your side, then you would need to disable Early Media so that CUCM can
tell the phone to generate ringback locally.

Unfortunately, this setting is for the whole trunk and not on a per dialed
number basis. Use your creative SIP design options (different IP/port) to
create a second trunk to steer certain dialed number to either trunk
depending on needs.

On Tuesday, June 3, 2014, Matthew Loraditch <
MLoraditch at heliontechnologies.com> wrote:

>  We are having a regular but not always issue with a client, where they
> are not hearing the ringing when dialing outbound on calls. These are SCCP
> 6945s to UCM 9.1.2 SIP Trunked to CUBE and then handoff to at&t’s ipFlex
> service.
>
> If anyone has some suggestions to look at before I spend time with TAC it
> would be appreciated!
>
> Thanks!
>
>
>
>
>
> Matthew G. Loraditch – CCNP-Voice, CCNA-R&S, CCDA
>
> 1965 Greenspring Drive
> Timonium, MD 21093
>
> direct voice. 443.541.1518
> fax.  410.252.9284
>
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