[cisco-voip] Sip Trunk - CUCM and Third-party PBX

[Mark Holloway]

Typically you can disable SIP INVITE AUTHENTICATION on PBX’s.  What kind of PBX is it? 


> On May 14, 2015, at 1:44 AM, Tim Smith <tim.smith at enject.com.au> wrote:
> 
> Hi Claiton,
>  
> I don’t think this has changed recently.
> You can’t do a SIP REGISTER from CUCM directly on a trunk.
>  
> You need to have something in between, such as a CUBE / Acme, or some other SBC
>  
> I would be pushing the PBX guys to see whether they can do without the registration requirement and just go via IP’s.
>  
> Or is it temporary? Maybe you can do H323 instead.
>  
> Cheers,
>  
> Tim
>  
> From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Claiton Campos
> Sent: Monday, 11 May 2015 11:33 PM
> To: cisco-voip at puck.nether.net
> Subject: [cisco-voip] Sip Trunk - CUCM and Third-party PBX
>  
> I have a scenario where I need to create a SIP trunk between a CUCM 10.5 and a third-party PBX. The problem is that the third-party PBX prompts the trunk sip is authenticated through username and password should I register on the CUCM. Has anyone had an experience with this type of configuration on a SIP Trunk?
> 
> Tks,
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