Re: [VoiceOps] RTP Proxy TTL Behavior

2019-02-11 Thread Jeff Anderson
I am seeing 64 on our endpoints like polycoms vvx and adtrans TA908, etc. On our carrier switches I am seeing 256. It's very specific call flows that will exhibit this behavior, more corner case stuff but we are observing it nonetheless. On Mon, Feb 11, 2019 at 9:11 AM Glen Gerhard wrote: > Hi

Re: [VoiceOps] RTP Proxy TTL Behavior

2019-02-11 Thread Glen Gerhard
Hi Jeff, The B2BUA is a signaling function, not necessarily an IP layer function. Yes, some SBCs may give you the ability to modify the TTL but I'd look more at the Gateway/IP Phone configuration. What is the TTL being sent out by the end device? Som

[VoiceOps] RTP Proxy TTL Behavior

2019-02-11 Thread Jeff Anderson
We are occasionally running into a situation where our IP Header TTL expires in transit for RTP streams. It has been our observation that our SBC B2BUA that anchors media is not resetting the TTL on RTP packets but is on SIP packets. Is there a standard expected behavior for how SBC B2BUA with med