SIP Trunking

[cella]

Hi there,


Someone can explain to methe difference of having 2 Quadros connected each other via a SIP Trunk and having the 2 Quadros connectedvia a regular SIP connection (an entry created in the rounting table)?


Even before the introduction of SIP Trunking on Quadro it was possible to have 2 different Quadroslogically linked via SIP over the WAN. Whatimprovements the SIP Trunking canadd to this scenario?


Regards


Cela

[AramK]

The difference is the following. When you use Routing Rules to create a logical links between 2 Quadros, then you must specify the IP-Adresses (SIP port)of both Quadros in the rules. This is pretty fine when your Quadros have static IPs (SIP ports).


In case of using SIP Trunk/Tunneling there is a Server/Client mechanism implemented. You must sepcifyServer IP(SIP port) on the Client Quadro(s) only. In case if that parameters will be changed during operation, no additional configuration will be needed.

[hrant221]

It worth mentioning two main distinguishing features regarding SIP tunneling (to avoid confusion SIP trunking is renamed to tunneling in the latest releases):
-the slave device is registering on the master device and thus its IP address can be dynamic and behind the NAT and the master can always find it.
-with symmetric NAT enabled on the master device, the calls will work even if the slave device is located behind the symmetric NAT