AT&T IP Flex - Cisco Unified Border Element (CUBE)

[Georgios Sotiropoulos (OLD)]

Hello Community,

My company checks the options we have to "migrate" our AT&T line of one of our offices at US, from T1 PRI to IP Flex.

From what I have seen on documentation, in order to do that Cisco suggests to use a router as CUBE for connectivity with the provider (please see the attatched document). We currently use a CUCM 8.5 with two MGCP voice gateways (one of which may be used for interconnection with the SP provider). 

I have the following questions (I am sure that many of you at States have already impemented this):

1. Is the use of CUBE the only solution for implementing SIP trunking with AT&T for IP flex?
2. Do we need to have extra lisences -apart from changing the IOS on the router- for enabling CUBE on the voice gateway, since we have already the ipbase and uc lisences?

Below you will find some details concerning the Voice Gateway:

Cisco CISCO2921/K9 (revision 1.0) with 483328K/40960K bytes of memory.

Processor board ID FTX1527AL0A

3 Gigabit Ethernet interfaces

24 Serial interfaces

1 Channelized T1/PRI port

DRAM configuration is 64 bits wide with parity enabled.

255K bytes of non-volatile configuration memory.

255744K bytes of ATA System CompactFlash 0 (Read/Write)

License Info:

License UDI:

-------------------------------------------------

Device#   PID                   SN

-------------------------------------------------

*0        CISCO2921/K9      

Technology Package License Information for Module:'c2900'

-----------------------------------------------------------------

Technology    Technology-package           Technology-package

              Current       Type           Next reboot 

------------------------------------------------------------------

ipbase        ipbasek9      Permanent      ipbasek9

security      None          None           None

uc            uck9          Permanent      uck9

data          None          None           None

Any feedback would be really appreciated.

Thanks in advance,

George

[Chris Deren]

CUBE is Highly recommended, and you should plan on using it. As to licenses Cube requires session and redundancy licenses.

Chris

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[Georgios Sotiropoulos (OLD)]

Hello Chris,

Many thanks for your prompt reply!

So, If I understand correct the CUBE will not be operational until we purchase the lisence, even if uc and ipbase are already activated and purchased?

Apologies if the answer on the above sounds obvious..

George

[Chris Deren · Accepted solution]

The cube licenses are paper licenses, they do not get added to the router.

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[Georgios Sotiropoulos (OLD)]

As you may understand, technically speaking, my main concern is to have the CUBE operational as soon as possible, and most probably before the lisence files arrive, so if I get it right everything should be working prior of any additional purchase. This is a relief

Thanks for your useful post (one of the many..)

George