I agree with Daniel here. Within the platforms we rarely use DNS as most systems are fixed (not moving around, have a permanent IP address) and we handle failover and load balancing using solutions like the Kamailio dispatcher.
From the client side, like softphones or desktop phones, I personally use a lot of DNS to find the first hop SIP server. This way I can manage the clients, control load balancing, provider failover and make sure they always reach the service.
Cheers, /O
On 22 Aug 2023, at 21:14, Daniel-Constantin Mierla miconda@gmail.com wrote:
Hello,
DNS-based routing is not very common in telecommunications, most of the interconnects being done based on IP routing and IP-trusted rules. Because DNS is usually a blocking operation that involves network communication (therefore can introduce delays), many of the dns features are turned off by default. When one has to build a system that relies significantly on DNS-based routing, those features can be turned on via config.
Cheers, Daniel
On 22.08.23 17:07, Silvan Nagl wrote:
Hi,
I would like to know the reason for having "off" as default value for use_dns_failover. https://github.com/kamailio/kamailio/issues/3547
Greetings, Silvan
-- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio World Conference - www.kamailioworld.com
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