[cisco-voip] SIP Trunk Profile (TCP vs. UDP)

[Mike Wilusz (miwilusz)]

When I was a customer, we set our trunks to UDP on the CUBE facing the
carrier.  This was as per a recommendation and implementation guide from
them.

-mike


On 8/30/12 11:10 AM, "Mark Holloway" <mh at markholloway.com> wrote:

>For those who have SIP Trunks to the PSTN, which are typically UDP
>between the carrier and the edge SBC on premise, how many of you are
>leaving the CUCM SIP Trunk as TCP versus changing it to UDP?
>Troubleshooting end-to-end call flow seems easier to bind together when
>both sides of the SBC are UDP.  Also, I find there hasn't been any real
>benefit to using TCP of the carrier side is UDP.  I would like to hear
>what others are doing.
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