Quote:
Originally Posted by gotalkvoip
Would be nice if someone would explain how to set Voxalot's failover implementation YES ...
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The procedure to enable DNS SRV failover varies by device. From another post I see that you use something from Sipura, same as Linksys. To use DNS SRV failover in Linksys/Sipura:
1. Set 'Proxy' and 'Outbound Proxy' to the desired Voxalot proxy such as au.voxalot.com.
2. When using DNS SRV one cannot specify any port number after the proxy used in 'Proxy' and 'Outbound Proxy', meaning do not write it this way: au.voxalot.com:5060. This excludes people accessing Voxalot on an alternate SIP port number.
3. A port number should be included with any SIP address used in the Dial Plan or Speed Dial Settings (example; echo@proxy01.sipphone.com:5060)
4. Set 'Use DNS SRV:' yes
5. Set 'DNS SRV Auto Prefix:' yes
6. For faster reaction to a failed proxy set 'Register Expires:' lower, 600 seconds may be the best choice here.
After making these changes all Voxalot proxies will be available for use automatically. The order in which the proxies are preferred will vary depending on which proxy name you have entered in 'Proxy' and 'Outbound Proxy' (us.voxalot.com, eu.voxalot.com, or au.voxalot.com) and of course which proxies are on/off line.
To keep audio latency at a minimum when using a distant proxy, make sure your ATA is sending your public IP address as the RTP contact address, so that voice packets will come directly to your ATA, not via Voxalot's proxy.
To test for correct RTP contact address you should set
'Enable IP Dialing:'=yes then use one of your Speed Dial Settings to call
*0@proxy01.sipphone.com:5060 where you will hear a message. If the message says "You are behind a SIP compatible router" that means your ATA sent the correct public IP address as the RTP contact address. On the other hand, if you hear something to the effect of "You may experience call completion problems behind this router" that means you must change some settings in your ATA, I have other posts about exactly what changes to make.