Pings roughly double on phones...Yealink issue?

[cadillackid]

im not sure exactly what IP stack the yealinks use, however i had this same issue with another brand phone.. the phones worked fine, we had no voice quality issues, but their ping times were much higher than other phones (ie aastra, polycom)...

the issue was actually nothing at all.. it was the fact that the embedded IP stack they use prioritizes packets and CPU usage.. Ping ICMP stuff was at the Bottom of the list so was taken care of Last by the phone..

the correct way to "Ping" a phone if you are using it for moinitoring quality statistics is to send it a Sip OPTIONS packet and measure the reply time.. this is the way Asterisk Server "qualify" works. . so in Hosted situations you can get a decent idea of Network latency without a lot of fancy VQM software..
-Christopher