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URI Dialing Problems

stephen.bancroft
Beginner
Beginner

I've started at a new job and have been asked to support our video conferencing gear, I have limited expereince with v/c kit, however I have many years expereince with networking & unix, so please go gentle.

I have a Tandberg C20 & C60, which are both on public ip's, I do not have a VCS or a gateway of any sort. I can dial directly to any IP and they can dial me back directly. However I cannot dial any numbers that require a URI style string (name@ipaddress).  The call just fast fails with no reason given.

I have a TMS setup that can see both units, I can also login to the web interface, tsh & command line as root on both units.  I've googled just about as much as I can but cannot figure what the problem may be. If anyone can point me in the right direction as to what log file or config setting I should be looking at, that would be greatly appreciated.

1 Accepted Solution

Accepted Solutions

Stephen Bancroft wrote:

I have been testing from the C60 which has software version TC4.1.0.247017

And there is your problem....

You cannot use URI dialling with software versions prior to TC4.2 unless the system is registered with a Gatekeeper.

Cisco only introduced full support for H.323 Annex O in TC4.2 - so you'll need to upgrade your system.

As it is, you can only do IP address dialling.

If you don't have a service contract in place, then you will still be able to upgrade the unit as per the below security advise:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130619-tpc

Contact TAC to obtain release key etc.

/jens

Please rate replies and mark question(s) as "answered" if applicable.

Please rate replies and mark question(s) as "answered" if applicable.

View solution in original post

10 Replies 10

Wayne DeNardi
VIP Alumni
VIP Alumni

Hi Stephen,

Are the URI's you're trying to dial H.323 endpoints, or SIP endpoints?

Have you got whichever protocole you're trying to use configured on your endpoint?

Have you tried changing the call type from H.323 (default) to SIP when dialling, or changing the default call type?

Can you please provide some more details on your endpoints - ie, which version of the software are they running?

Wayne

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Can you dial name@domain? And do you have a valid DNS server?

Thanks for the quick responses, I will take these in order.

We are using H.323 only. SIP is disabled.

*c xConfiguration NetworkServices H323 Mode: On

*c xConfiguration NetworkServices SIP Mode: Off

*c xConfiguration H323 NAT Mode: Off

*c xConfiguration H323 NAT Address: ""

*c xConfiguration H323 Profile 1 H323Alias ID: "c60.phm.gov.au"

*c xConfiguration H323 Profile 1 H323Alias E164: ""

*c xConfiguration H323 Profile 1 PortAllocation: Dynamic

*c xConfiguration H323 Profile 1 CallSetup Mode: Direct

*c xConfiguration H323 Profile 1 Gatekeeper Address: ""

*c xConfiguration H323 Profile 1 Gatekeeper Discovery: Auto

*c xConfiguration H323 Profile 1 Authentication LoginName: ""

*c xConfiguration H323 Profile 1 Authentication Password: ""

*c xConfiguration H323 Profile 1 Authentication Mode: Off

*c xConfiguration SIP Profile 1 URI: ""

*c xConfiguration SIP Profile 1 DefaultTransport: Auto

*c xConfiguration SIP Profile 1 TlsVerify: Off

*c xConfiguration SIP Profile 1 Type: Standard

*c xConfiguration SIP Profile 1 Outbound: Off

*c xConfiguration SIP Profile 1 Proxy 1 Discovery: Manual

*c xConfiguration SIP Profile 1 Proxy 1 Address: "Click to edit..."

*c xConfiguration SIP Profile 1 Proxy 2 Discovery: Manual

*c xConfiguration SIP Profile 1 Proxy 2 Address: ""

*c xConfiguration SIP Profile 1 Proxy 3 Discovery: Manual

*c xConfiguration SIP Profile 1 Proxy 3 Address: ""

*c xConfiguration SIP Profile 1 Proxy 4 Discovery: Manual

*c xConfiguration SIP Profile 1 Proxy 4 Address: ""

*c xConfiguration SIP Profile 1 Authentication 1 LoginName: ""

*c xConfiguration SIP Profile 1 Authentication 1 Password: ""

As far as I am aware there should be no further confguration required for H.323, please advise if I am incorrect.

I am not using a domain name in the dial string, just the raw IP, So DNS should not be a factor.

I have been able to use tcpdump from the terminal and I can see packets when I make a call straight to an IP but when I use the URI string I see nothing, no attempt to make a call.

I have been testing from the C60 which has software version TC4.1.0.247017

I should also mention that there is no firewall blocking in place. We have the IP's for these units in a policy that allows ALL on egress and ingress.

Stephen Bancroft wrote:

I have been testing from the C60 which has software version TC4.1.0.247017

And there is your problem....

You cannot use URI dialling with software versions prior to TC4.2 unless the system is registered with a Gatekeeper.

Cisco only introduced full support for H.323 Annex O in TC4.2 - so you'll need to upgrade your system.

As it is, you can only do IP address dialling.

If you don't have a service contract in place, then you will still be able to upgrade the unit as per the below security advise:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130619-tpc

Contact TAC to obtain release key etc.

/jens

Please rate replies and mark question(s) as "answered" if applicable.

Please rate replies and mark question(s) as "answered" if applicable.

+5 to Jens' answer.  Youll need a newer version of firmware than TC4.1, and the security advisory is a good way to get a "free" upgrade if you haven't got a service contract.  This doesn't guarantee any furture upgrades will be available to you though, so a service contract is always a good idea if you want to keep your device up to date.

Wayne

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Wayne
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Yep old firmware was the problem. I was able to login to the TAC and get TC5.1.8 and I can stop pulling my hair out now, URI dialing works !

Cheers......