[cisco-voip] SIP Trunk Provider PRI Handoff or CUBE?

[Justin Steinberg]

I don't see any problem with this either.  In fact, with this solution
there are a number of issues you don't have to worry about such as dtmf
relay, early offer /delayed offer, fax relay, etc.


On Thu, Jul 26, 2012 at 12:31 PM, Mark Holloway <mh at markholloway.com> wrote:

> Adtran TA900 Integrated Access Devices are widely deployed to SIP to PRI
> handoffs.  When I worked for a carrier we deployed Adtran for customer who
> needed 3 PRI's or less to their PBX and Cisco ISR for customer who needed 4
> or more PRI's to their PBX. Both worked well with SIP trunking into the
> Service Provider core. I'll caveat and say all Adtran/Cisco devices were
> talking to Acme Packet SBC's in the core which helps keep everything
> gracefully manageable.
>
>
> On Jul 26, 2012, at 11:57 AM, Ted Nugent wrote:
>
> > I received a call from a former client (I switched partners) that is
> migrating sites over from PRI to SIP and has an arrangement with his
> provider that they will provide PRI handoffs via Adtran gateways so that he
> does not need to purchase additional hardware or licencing. Apparently, His
> Cisco account team caught wind of this and told him this was against "Cisco
> Best Practice", that he will experience nothing but problems and needs to
> have CUBE in place and take SIP directly to CUBE, then proceeded to quote
> him $50k in upgraded routers and licensing.... This is where I got called
> and figured before I start up the bus and start tossing people under it I
> would ask you folks to see if there was anything I might be missing here?
> Using the PRI handofffs sound reasonable to me since there does not seem to
> be any compelling reason I can think of to go to CUBE in his situation.
> > I've seen many clients running SIP trunks with PRI handoffs for the same
> reasons and to my knowledge have had zero problems.... It sounds to me like
> it's Cisco's Year End and someone is embellishing the truth to sell
> unnecessary gear.... Anyone else know of any issues of terminating the SIP
> trunk on an Adtran and providing a PRI handoff, assuming you don't need
> more than the 23 channels....?
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