A: Cisco CUBE is an Integrated application with Cisco IOS software.
CUBE functionality is supported in Cisco 2600XM, 2691, Cisco ISR 2800, 3800 series, Cisco VXR 7200, Cisco XR 12000, AS5400XM Universal gateways and the Service Provider Gateways.
Q5: Do we need Digital signal processors (DSPs) for CUBE?
A: Digital Signal Processors (DSPs) are only required for calls with dissimilar codecs
Q6: What is the licensing requirements of the CUBE?
A: If you have any existing Cisco Gateway then you can download the Cisco IOS supported version for running CUBE on your Gateway. Also you need to buy license for the no. of sessions in CUBE for different platform. Say for an example if you want to have a CUBE supporting 500 sessions , you need to buy the license for this amount.
Q7: How to have a basic setup between CUCM and CUBE?
A: The layout will be CUCM-sip-Cube-sip-provider.
First you need to create the SIP trunk on the CUCM and point it to the cube
Bind your sip signalling to the appriprate interfaces on the CUBE
Enter the respective dial-peers on the cube for inbound and out bound calls to and from the CUCM
Q8: Do CUCM need special license for CUBE or it will be just a SIP trunk without license?
A: No, there is no special license for connecting CUCM to CUBE..
Q9: WE have a CUBE for a SIP connection. I know there is a license that we purchased from Cisco. Is there a command to enter on the CUBE to view the licenses?
A: The CUBE licenses are not entered into the router. As of now, they are paper licenses.
Q10: Whether CUBE supports Voice and Data traffic simultaneously?
A: Yes. CUBE is in IOS based platform hence it can handle both Voice and Data traffic.
Q11: Does CUBE have to be run on a dedicated device/router?
A: Not Necessary. It depends on the voice traffic you want to route using CUBE. For large enterprise its recommended to use standalone device for CUBE functionality. If the traffic is not high you can run other services along with the CUBE application for voice on the same platform simultaneously.
Q12: Do we need DSP resources in CUBE if the SIP trunk from city (external) to the SIP trunk of CUCM will be used?
A: DSP resources are required to simply connect to SIP Trunk. DSP resources are required if you plan on doing transcoding between g711 to g729 codec. For conferences if all parties are using g711 codec, then you can use the software resources in UCM to do the conferencing. If one of the parties is using g729 codec and if that needs to be conferenced, you will need to use voice gateways for hardware conferencing which will require DSPs. Digital Signal Processors (DSPs) are only required for calls with dissimilar codecs.
Q13: Will SRST work on CUBE ?
A: Yes, SRST and CUBE can be co-located on the same router.
Q14: Explain the Call flow in CUBE.
1.Incoming VoIP setup message from OGW to CUBE
2.This matches an inbound VoIP dial peer 1 for characteristics such as codec, VAD, DTMF method, protocol etc
3.CUBE then looks up called number in setup and matches outbound VoIP dial peer 2
4.Outgoing VoIP setup message from CUBE to TGW
Q15: How to enable the IP-IP Calls and Protocol support in CUBE ?
A: Enabling the IP-to-IP Calls
CUBE#config t CUBE(config)# voice service voip CUBE(conf-voi-serv)#allow-connections h323 to h323 CUBE(conf-voi-serv)#allow-connections h323 to sip CUBE(conf-voi-serv)#allow-connections sip to h323 CUBE(conf-voi-serv)#allow-connections sip to sip
It is mandatory to have Incoming and Outgoing VoIP Dial-peers with required parameters like Protocol, Transport, Codec, CAC, QoS, etc
A: Yes CUBE supports Universal Transcoding, any to any Voice codec. Example. iLBC to G.711 or iLBC to G.729
List of codecs supported
g729 (all variants) 8Kbps
Q17: What is CAC?
A: CAC is Call Admission Control. It control number of calls based on resources and bandwidth and Proactively reserve resources for good quality video calls. Also it ensure traffic adheres to QoS policies within each network. CUBE can provide six different CAC mechanisms
Q18: Is CP-PWR-CUBE-4= compatible with the 7900 series phones?
A: No this power cube is for the new 8900/9900 phones, compatable with Communications Manager. The power tip is different size, won't fit in other phones.
Q19: Im trying to find a way to route inbound SIP calls, based on their source.
SIPCarrier1 is coming from 220.127.116.11
SIPCarrier2 is coming from 18.104.22.168
If calls originate from SIPCarrier1, I want them to be passed to my UCM Cluster.
If call originate from SIPCarrier2, I want them to be passed to my Asterisk box.
I've played around with incoming called-number, trying to make it work with IP addresses, rather than phone numbers, but no luck.
Any ideas on how to enable source based routing?
A: Yes this can be achieved by Carrier based Routing. Refer this link for more details.
Q20: CUBE Sizing, how many simultaneous calls/ sessions are supported on each Router model to terminate a SIP Trunk at the service provider end?
A: Refer the given table for more details.
Q21: What are the types of CUBE licenses available?
A:Two types of Cisco Unified Border Element licenses are available:-
• Pay-as-You-Grow, or session count, license
• Platform, or flat, license
Cisco Unified Border Element licenses are available in both types on select platforms. Cisco Gatekeeper licenses are available in the platform license type only.
This type of license covers the right to use the feature as well as the maximum session count allowed. An example is the FL-CUBE-25 license, which allows up to 25 sessions.
This license is designed to allow a specific number of sessions (or calls) on a platform. Purchase only as many sessions as are required in your deployment. You can add more licenses later as your needs expand, thus offering pay-as-you-grow benefits. Session licenses are stackable. These licenses are available on select platforms as given in Table 3, and are available on all software images. Examples include the FL-CUBE-4 and FL-CUBEE-100 licenses.
This type of license covers the right to use the feature up to the maximum session count supported on the chosen platform. An example is the FL-INTVVSRV-2811 license, which allows the maximum number of sessions the Cisco 2811 platform supports.
These licenses are available on select platforms. These licenses require a software image.Examples include the FL-INTVVSRV-2801 and FL-GK-3945 licenses.
Cisco Unified Border Element Licenses
For Active/Standby redundant configurations, use the "Redundant-Platform" licenses. For all other configurations, including single-platform Active/Active load balancing, and Inbox redundant configurations, use the "Single-Platform" licenses.
Q: Can we Integrate CUBE with Siemens OSV. Can CUBE do it? What are the element in specific needed for Integration and deployment ? Please share a sample configurations?
A: We have validated the integration with Siemens HiPath 4000. More details on the integration is:
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