Best VPN phone solution?

[morri156]

We upgraded from a Definity G3r to Communications Manager a year ago. We have two 9620L VPN phones deployed that on a scale from 1 to 10 are operating about a 6. They drop calls and sometimes don't give dial tone.
Are there known problems with that particular model?
Is there a better 96xx for VPN?

[gwebster]

The 9620L has been discontinued. The most-equivalent model which is currently available is the 9608 or 9608G.

[zakabog]

That's more likely an issue with the VPN than the phone. If you don't have a very reliable connection between the two sites, your phone is going to have issues like that.

[dlover]

Definitely hard to get IT to support IPSec-based VPN's anymore. Very much a dead, and not very secure, technology. TLS/SSL based vpn's are the way to go. For communications using TLS, you're talking SIP. I'm definitely a big fan of SIP-based remote users versus VPN users. Yes, you need Session Manager and System Manager to go along with your Communication Manager (all virtualizable in VMWare). And yes, you need an SBC. Avaya's SBC-E handles remote workers better than the others because of its ability to transform the PPM messages for external users. And you really should be on at least Avaya Aura 6.3 FP4. You can get 96xx's to work with SIP, but I definitely like the 96X1's better.

I wrote a blog about this a while back. http://www.arrowsi.com/company/blog/...ontroller.html.