SX20 Not Registering

[clark white]

Hello,

Please find the attached for h323 and SIP.

I have installed SX20 and trying to register just as like a phone but it is not registering, I have read the documents on internet , saying that in  SX20 we should configure H323 gatekeeper or SIP to register and also it shld be registered as a endpoint. Is it is a H323 gatekeeper or H323 gateway???

What i am suppose to fill in sip URI and authentication, and proxy address????

Thanks

[Paulo Souza]

Hi,

You have not informed the main, what is the server you are trying to register SX20 to? What protocol does it use?

Regards

Paulo Souza

[clark white]

Thanks for reply

I am trying to register in CUCM 9.1

[Paulo Souza]

Hi Clark,

In this case, you dont need to configure H323 at all. SX20 register to VCS only using SIP.

When registering SX20 TO CUCM, you dont need to setup SIP configuration, CUCM is going to do that automatically. You must only to configure your system to use CUCM as the provisioning server. To do so, go to web page and choose on menu configuration the option External Manager. Configure as following:

1 - Go to Provisioning section and set Mode to CUCM. Click

ok to save the changes.

2 - Go to the ExternalManager section and the IP address

or DNS name of the External Manager of the Cisco UCM

cluster TFTP server in the Extermal Manager input field.

Click ok to save the changes.

Before to that, you have to create a new device for SX20 on CUCM configuration.

Please, refer to this guide to obtain more details:

http://www.cisco.com/en/US/docs/telepresence/endpoint/codec-c-series/tc6/administration_guide/administering_endpoints_running_tc6_on_ucm90.pdf

Regards

Paulo Souza

[clark white]

Thanks Paulo it got registered  i have rated you but the tick is not appearing green.

I have 2 questions,

• Can i dial from another corporate SX20 or thirdparty  and can have a teleprsense.???

• I have  4 No's SX20 and  a MPLS connectivity to my 4 locations, I hope i have to dial through IP to my other location SX20 IP address, corect me if i m not wrong, how can i  do that

Thanks

[Paulo Souza]

Hi Clark,

1 - To have a conference via internet with another thirdparty telepresence systems you must to have Cisco VCS Expressway solution, it will allow you to call endpoints via internet. VCS is integrated with CallManager and it will alow your systems to call and receive calls from internet in an easy and security way.

2 - Are those another endpoints registered to some gatekeeper or CUCM?

Regards

Paulo Souza

[clark white]

Dear

I did'nt understood your 1 point can u elaborate more.

I want to dial within a city to another corporate to his SX20 not from the internet, the call will go through the Voice Gateway.

If  they are registered to same gateway then i can dial thorugh local 4 digit extension but they are not, they will registered to different CUCM but i have a IP connectivity.

[Paulo Souza · Accepted solution]

Hi Clark,

1 - When you need to have conference involving local endpoints and endpoints located on internet, it is not a simple task, because there is some problems, such as NAT, firewall configuration, many public address, many ports to be opened, security issues and so on. To solve these problems, Cisco has a product called VCS Expressway. VCS Expressway is an H323 gatekeeper/gateway and SIP Registrar server. He has an especial feature to integrate your internal video conference environment with the internet. With VCS you can solve major of the problems related to make a video conference through internet. VCS offers firewall traversal and acts as border element to allow comunication between your local network and internet, providing security, decreasing the number of ports to be opened and demanding only a single public IP Address.

2 - If there is IP connectvity without firewall or NAT, you can estabilishes a SIP trunk between both CallManagers, so that endpoints can call each other dialling extension through this trunk.

With regards the Voice gateway, I didn't understand what you described. Do you want to establish a voice Call through ISDN? What is the Voice Gateway?

Regards

Paulo Souza

[clark white]

Thanks Paulo

Very good Explanation.i have rated the above reply also

With regards the Voice gateway, I didn't understand what you described.  Do you want to establish a voice Call through ISDN? What is the Voice  Gateway?

for ex:

I am in australia and i want to make ISDN call to USA through SX20 as an endpoint, i can do that ??? please correct me ??

what special configuration i have to do for video on Voice gateway??????

[Paulo Souza]

Hi Clark,

In order to have video calls via ISDN, you must to have video ISDN gateway and a ISDN link with video enable, you cannot do it by using a common voice gateway and voice link.

Cisco provides some gateways ISDN for video that works very well:

http://www.cisco.com/en/US/partner/products/ps11448/products_data_sheets_list.html

Regards

Paulo Souza

[clark white]

hello Paulo,

I just changed to static Ip address on my SX20 and it lost connectivity with CUCM, the Ip address is within the range of CUCM, but when i revert back to DHCP it is registered.

I tried restarting the device when i moved to static but no success.

Thanks

[Paulo Souza]

Hi Clark,

Can you ping CUCM at least?

Regards

Paulo Souza

[clark white]

Dear,

I am very new to teleprsence so please bare with me,

No i can't ping.

Again i changed to DHCP ,, at the end it is end device so let be on a DHCP.

just asking for my knowledge  below is the procedure to dial IP by remote.

home>call> type a ip address<210.210.210.200>and press tick button.

[Paulo Souza]

Hi Clark,

clark white escreveu:
No i can't ping.
Again i changed to DHCP ,, at the end it is end device so let be on a DHCP.

If you cannot even ping when setting up a static IP Address on the codec, probably there is a network problem. I guess you should contact network team to have assistance.

just asking for my knowledge  below is the procedure to dial IP by remote.
home>call> type a ip address<210.210.210.200>and press tick button.

Yes, also set call protocol to H323.

Regards

Paulo Souza