About DrVoIP

DrVoIP · 05-19-2017

I have a CUBE configuration that is also acting as an internet gateway. Unfortunately applying a NAT to the interface destroys SIP and the gateway fails. Remove NAT and all is well. This is in a rural community in which they cant really afford mu...

DrVoIP · 02-08-2017

I am attempting to export a CUCM Virtual Machine image to an AWS EC2 instance. Running into a number of challenges and am wondering if anyone else has tried it or has actually done it successfully? I would be interested in sharing experience and l...

DrVoIP · 07-07-2016

Wrestling with a new deployment of CISCO Workforce (I even struggle with the name). Simple 10.6 CISCO UCCX and CUCM cluster and a single WFQ server for Compliance Recording only, no fancy features. I configured CUCM much the way I would configure ...

DrVoIP · 06-22-2015

Just opening up a brand new UC220 server for a BE6K deployment. I expected to find the usual OVA/ISO library on the datastore, so imagine my suprise when I find PCD, CUCM, Unity, CUPS and UCCX already in the inventory list of the vmware host. The...

DrVoIP · 06-10-2014

Is it possible to create a SIP audio only trunk between a non-cisco PBX that supports SIP trunks and a VCS X7.2.1? The VCS is installed without a Call Manager and is not part of a CISCO UC deployment. It is used only for Video conferencing. We n...

DrVoIP · 08-24-2018

Check out click2webchat.com which can bring SMS as well as Video along with website integration and screen sharing to a UCCX deployment. Written around Twilio and AWS cloud solutions. Excellent and cheap!

DrVoIP · 11-01-2017

It is more than likely you have a Calling Search Space issue. Check the inbound gateway CSS as it may be limited and unable to dial back out. The fact that you can call the script internally and it works, indicates that the script is working.

DrVoIP · 06-12-2017

The issue with one way audio was easier to figure out after setting up a packet capture. The captured showed that the carrier was seeing the outbound audio RTP stream as coming from the IP of the loopback0 address and not the public ip of the WAN in...

DrVoIP · 06-06-2017

Yes, using extended ping shows no connectivity issues between devices. The configuration looks like this. PSTN_IP=>(G0/0=>STATIC-NAT L0=>G0/1)=>LAN Internet_IP=>(G0/0=>NAT Overload =>G0/1)=>LAN Again SIP messages are exchanged in both directions; A...

DrVoIP · 06-05-2017

Kevin (and interest others) - I spoke to soon! (play on words?). So moving sip to the loopback had the effect of enabling internet access and SIP to work. There is however a major issue - ONE WAY AUDIO. I have tried all combinations of NAT or NO ...

Member Since	‎07-11-2012 06:38 PM
Date Last Visited	‎10-08-2024 03:50 AM
Posts	154
Total Helpful Votes Received	15

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CUBE SIP NAT Puzzel

CUCM in AWS Amazon Web Service Cloud

Calabrio/CISCO Workforce Optimazation configuraton

Preinstalled CUCM applications for UC220

VCS X7.2.1 to PBX

Re: SMS Function for UCCX

Re: Internal and External act differently on UCCX Call Redirect to external number

The issue with one way audio

Yes, using extended ping

Kevin (and interest others) -