jitter buffer size?

(1/4) > >>

Rambobino:
Hi,

I just received my new OBi110 and I'm testing it. I already have a PAP2T-NA that I have been running for a year. I'm comparing the two devices to see some differences and I've noticed one in the voice delay. I'm using voip.ms as a service provider and I can test the echo by dialing 4443. Under the same conditions (Internet line and router QoS), there's a noticeable additional delay when using the obi110 (by ear I would say ~750ms with the obi and ~250ms with the PAP2T). I know that the jitter buffer setting can create delay when it is set too high, and by checking the call status information in the obi110, I see that the buffer is at 190ms which is a little bit high. I've searched for a setting but I didn't find anything so I'm asking here if it's possible to change the jitter buffer size like I can do in the PAP2T? If not, how can I reduce the delay?

Here's the call status information:

Call 1             
Terminal 1   Terminal 2
Terminal ID   PHONE1   SP1
State   connected   connected
Peer Name      
Peer Number   4443   4443
Start Time   22:58:41   22:58:41
Duration   00:12:09   00:12:09
Direction   Outbound   Outbound
Peer RTP Address      *removed*
Local RTP Address      *removed*
RTP Transport      UDP
Audio Codec      tx=G711U; rx=G711U
RTP Packetization (ms)      tx=20; rx=20
RTP Packet Count      tx=36483; rx=36430
RTP Byte Count      tx=6275076; rx=6265960
Peer Clock Differential Rate      -34 PPM
Packets In Jitter Buffer      9
Packets Out-Of-Order      0
Packets (10ms) Interpolated      30
Packets Late (Dropped)      0
Packets Lost      4
Packet Loss Rate      0 %
Packet Drop Rate      0 %
Jitter Buffer Length      190 ms
Received Interarrival Jitter      1 ms
DTMF Digits Received      0
Jitter Buffer Underruns      0
Jitter Buffer Overruns      0
Sequence number discontinuities      4
skew compensation      0 ms

Thanks!

Rambobino:
Nobody has a clue?
Ok so forget about the PAP2T, how can I reduce the voice delay on the obi110? There's got to be a way to customize that??

Thanks

OBiSupport:
OBi device has a fully adaptive jitter buffer integrated, and there is no manual setting for jitter buffer configuration, nor user customization required.

You may contact our support at support@obihai.com if you have concerns regarding voice latency in normal phone calls, or experience any voice quality issues, thank you,

crazyk4952:
I am also using voip.ms with my OBi100 and have noticed a longer delay since I started using it a couple of months ago. My PAP2T worked well and I was able to adjust the jitter buffer to a low level to reduce delay. But the PAP2T died recently.

It is disappointing that we are unable to adjust the jitter buffer on the OBi. Maybe a new feature in the next firmware?

My jitter buffer is usually 180ms or so.

Rambobino:
I have not had time to contact their support yet, but a feature like that in the firmware would be definitely useful.
We just have to contact them I guess, maybe they have an advice to give us already.

The weird thing is that nobody seems to have that problem? Or does not care? Or doesn't have something to compare? Maybe it happens only with voip.ms?

crazyk4952 : Have you tested the ATA with another provider?

Navigation

[0] Message Index

[#] Next page