I have a rather large deployment coming up quickly and I do not have time to figure things out myself. Looking for someone with experience on openvpn AS and yealink phones. Yealinks support openvpn but are a bit of a pain in the ass.
We are an IP phone company. Until now we have always installed a cellular backup router that also is an outstanding VPN router (Pepwave MAX-BR1). So we have not needed any other vpn solution. We have racks in two tier 0 data centers, and recently expanded into google cloud. Our phone system is a high availability asterisk real time cluster spanning data centers. So each customer has a primary and failover data center assigned. We can lose a router, server or entire data center with pretty much zero impact.
Now I have an upcoming customer with MANY small locations and no interest in cellular backup because they are moving to us in order to do a centralized call center, meaning that the location phones are not so critical, plus they already have cellular backup for their POS systems. The phones are going to be directly on their internet modems (bleh).
So I am planning to use openvpn to route the VoIP and allow remote access to the phones for support. Added complexity of wanting to at the very least have failover on the openvpn, wanting to have two openvpn connections (although I do not think that is possible).
Anyone interested in working on this project please contact me here at at firstname.lastname@example.org
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