I have a UC 540 at the office, at my house I have an SR520 connected via VPN Remote.Telephonees behind the SR works fine, and I can ping the UC540 from my house.the problem is from the office to my house, I'm unable to ping. Any ideas which device is...

I have two UC540 running latest firmware setup as multisite. From one site to another site we need to use a scan to email feature, that uses SMTP port 25.But the UC at HQ is blocking it. I'm able to ping it, not sure what the issue is? any ideas?

I have an email server behind a UC540. I have turned on firewall set to MIN.Once I did that i started to have an issue with my mail flow with error firewall #500after doing some research I see that is a common probem with Cisco PIX firewalls.Can anyo...

I have connected my UC540 latest software pack to a FIOS Box. i'm only getting half the speed.Can someone post the steps on CLI to make the WAN interface full duplex please?

I'm waiting on support for Iphone. Anyone knows when this is being released?