One thing that is NOT available with Skype SIP trunks is fax.  If your client is doing any faxing with his phone lines, then Skype is not a viable option. ... View more

Hi, Brian, I did this with an 871 and a 520 three years ago, mostly using CLI at the time (CCA was nowhere near what it is now), so I'm a bit fuzzy on the details.  I've attached what I think are the successfully running configs of the 871 and 520 (note: this equipment is out of service and none of the routable IP addresses or passwords are in use, so I didn't bother to blank anything out).  The only trick I remember having to do outside the Cisco equipment was because the 871 was sitting behind a Comcast router;  I had to forward ports 500, 4500 and 10000 to the 871. Hope this helps. Richard ... View more

Will, I have no direct experience with the SA520, but I don't see any reason why it wouldn't play nice with the UC540.  In fact, the SA520 administration guide shows a scenario with it and a UC500 system. Richard ... View more

Hi, Will, In my opinion, the UC540 is a superior replacement for the UC520;  I had all kinds of trouble with the 520, and none with the 540.  As far as support goes, the small business support group is every bit as good, if not better (because they are focused on these products) than the TAC.  I can't address the multiple WAN issue, but otherwise I'm sure you'll be quite happy with the 540. Richard Seeder ... View more

Hi, Dan, Your problem may not be nat traversal unless your 520 is behind another router/firewall.  In CCA -> Security -> VPN Server click on the Network Access tab.  Make sure that the correct settings are entered.  For example, on mine, I have Spilt Tunneling checked and the following networks entered: 192.168,1,0 255.255.255.0; 10.1.1.0 255.255.255.0; 10.1.10.1 255.255.255.255. Richard ... View more

The 871 was probably set up to register with the UC500 at a fixed IP address; properly configured, the remote site IP address can be dynamic and not known a priori to the UC500.  What may be your problem is if the 871 is sitting behind the ISP's router.  In that case changing ISPs probably meant getting a new router, so you must make sure that the gateway address the 871 is using points to the new router's LAN IP address, and that ports 500, 4500 and 10000 on the new router are forwarded to the 871. ... View more

Thank you for the detailed answer, Victor.  The telco is Telmex; has anyone already captured this information and determined the proper disconnect coding? ... View more

Can I do that with the UC500? ... View more

This is a demo unit that was purchased in Jan 2008 which I believe is no longer covered by a SmartNet contract.  Luckily it wasn't production system.  How can an upgrade to a fully functional system report success, then leave it it in an unbootable state? ... View more

Test message for bonus points ... View more