Cisco asa 5505 VOIP issues

What other direction should we check.  Vocalocity feels like it is a setting on the router.  They also have an SMC poe switch and use the linksys phones.  I understand there are some advanced settings in the phones themselves, but have not looked into that yet.

You need to describe your problem in more detail.

harbor235 ;}

It is bad outbound voice quality.  It is poor and sometimes drops.  Inbound seems fine.  

Try changing your codec

harbor235 ;}

What codec are you using? Have you tried G729?

harbor235 ;}

I am checkin the codec now

The RTP Start loopback codec is G711u.  

There is also an option to "force lan codec" set to none.  The other options are G711u and G711a

here is the phone info:
Product Information
Product Name:      SPA-962      Serial Number:      4MM00G803940
Software Version:      5.1.15(aSC)      Hardware Version:      1.0.3(371b)
MAC Address:      000E08DF4948      Client Certificate:      Installed
Customization:      Open      Licenses:      None

I have not removed the Inspect SIP statement from the router yet.

Try the G729 codec and see if it changes anything

harbor235 ;}

I will.  

I put the changes in late Friday, so Iwon't know until tomorrow morning the results.  I will post back.

The sound quality is better.  No more lost in a hole sound.  But it is still choppy.  Not 100%.  Especially at the first of a conversation.

without QOS end to end there is no prioritization of your traffic and it may be choppy. The real question is what does your provider provide you as far as QOS?

harbor235 ;}

I added the Priority setting on the inside and outside interface.  I believe thats ASA speak for QOS.  The provider is vocalocity.  As far as I see this travels on the open internet to their servers unless the phones themselves initiate some type of ssh or vpn connection.

I called in and is sounded pretty good.

You ASA speaks QOS, but does your provider listen to your QOS markings, that's the question?
Most likely thy do not and your QOS is dropped. You needc to find out if/how they handle it, it makes the difference between prioritization and best effort.

harbor235 ;}

Next step is working with the ISP.  I think we have checked everything locally that we can.

BTW this worked fine for several months as it sits.  the quality problems started recently.

It looks like one of my coworkers cracked it.  The router and network tweaks we changed certainly didn't hurt.

He found that an online backup service we use (mozy) was kicking on during the calls and causing the problems.  It is configurable, but was using mucho bandwidth.  We set it to run at night only and it was an immediate improvement.  We also changed the Jitter setting on the phones themselves.  Thanks for all your suggestions.

np, anytime

harbor235 ;}