Great suggestion. since in Pakistan , we have only port 5060 blocked on Tandum Level . Therefore, changing the SIP port , other than standard port can be a way around. However, some of the ISPs filters on DPI and can be identified even if we use SIP on any other port. In this case, as mentioned above, SIP over TLS is a best match. SIP over TLS hide your signaling but there is always a chance of RTP traffic being monitored in some cases. If you are identified as carrying RTP stream over your network, there is a chance of blacklisting of your IP. VPN is a work around for both cases. But the introduction of delays and high bandwidth consumption is a "not so good" ! Specially when you have bulk of traffic over your network. On Tue, Dec 24, 2013 at 1:35 PM, Alex Balashov <abalashov@evaristesys.com>wrote:
On 12/24/2013 01:32 PM, Cal Leeming [Simplicity Media Ltd] wrote:
Some hardware phones may also allow you to connect via a VPN.
Snom is noteworthy for its native support of OpenVPN (at least, in some firmware images, last time I checked, which was a few years ago).
-- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Decatur, GA 30030 United States Tel: +1-678-954-0670 Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
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