IAX trunk packet Loss

FreePBX Endpoints
1

HI
There are many packet loss on IAX trunks ( on Meetme ID )

Plan-Server*CLI> iax2 show netstats
-------- LOCAL --------------------- -------- REMOTE --------------------
Channel RTT Jit Del Lost % Drop OOO Kpkts Jit Del Lost % Drop OOO Kpkts FirstMsg LastMsg
IAX2/India-3947 240 -1 0 -1 -1 0 -1 11 8 80 0 0 0 6 11 Tx:NEW Rx:ACK
IAX2/India-4038 242 -1 0 -1 -1 0 -1 12 7 59 0 0 0 4 11 Tx:NEW Tx:ACK
IAX2/India-4237 242 -1 0 -1 -1 0 -1 30 9 52 0 0 0 11 29 Tx:NEW Rx:ACK
IAX2/India-5340 243 97 137 2307 30 2481 785 4464 0 40 0 0 0 0 0 Rx:NEW Tx:ACK
IAX2/India-7020 240 -1 0 -1 -1 0 -1 6 12 83 1 0 0 3 6 Tx:NEW Rx:ACK
IAX2/Plantation-Nether-In 127 6 80 423 0 5170242 386 9637 281 200 11411 36 1918 221 4368 Tx:NEW Tx:ACK
IAX2/Plantation-Nether-In 126 3 80 247 0 5173095 387 9625 44 103 11293 3 2028 204 4363 Tx:NEW Rx:ACK
IAX2/India-15288 242 107 158 2720 2 2910 921 4460 0 40 0 0 0 0 0 Rx:NEW Rx:ACK

2

IAX2 uses port 4569 , it is up to your network setup to get that from A to B without hinder, there is nothing that FreePBX can do to make that better.

3

Can I enable Jitter Setting in IAX ? will that make any benefit ?

4

Yes you can set

jitterbuffer=yes

but it probably won’t help, missing data is missing, a jitterbuffer will fill the missing packets with silence but at the expense of a longer delay. The bigger the buffer the longer the delay so after about 200ms
of silence or stuttered sound everyone gets pissed off and hangs up.

5

Thank You… Checking network stuffs.

6

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