MODULAR MESSAGING AUDIO ENCODING PREFERENCE

[SBL110]

We just had Modular Messaging (ver 3.0) installed. I've received a couple of complaints about voice quality. I did some poking around in the VMSC and found the audio encoding setting.

Does anyone have a preference for one of the three available codecs? We were using Microsoft GSM 6.10. I switched to G.711 mu-law and it really seems to have an impact on how much space messages take.

I'm looking for a balance between voice quality and storage space if that's possible. Thanks in advance for your opinions.

Scott

 

[KenMeans]

What is your message store? And what type of integration are you using?

Ken Means

http://www.tel-is.com

"I find that the harder I work, the more luck I seem to have."
- Thomas Jefferson (1743-1826)

 

[SBL110]

Hi Ken,

We're using Avaya's message store. Forgot to mention that we also have two MAS units configured as N + 1. As for integration, do you mean Outlook versus web versus TUI? If so, the answer is all three.

What I can't seem to figure out is how to determine the amount of disk space left on the MSS, and then convert that amount into minutes based on the current codec. If my math is correct (based on info from the internet) 1Mb of hard drive space should yield 2.6 minutes of saved messages at G.711 -- less any header information that is necessary by MM.

I did run across the following in the MSS under Query RAID System Information:

RAID System Info :


Logical Drives:
device name raid state (blocks) size (MB) blksize
-----------------------------------------------------------------------
/dev/sda 5 Okay 215328768 210282 1024

Physical devices:
ctl ch tgt state (sectors) size (MB) device type blksize
---------------------------------------------------------------------------
0 0 0 Online Disk Drive
0 0 2 Online Disk Drive
0 0 3 Online Disk Drive
0 0 5 Online Disk Drive

Controllers:
# Controller BIOS Firmware Driver Serial Status
------------------------------------------------------------------------------
0 2130S 4.2-0(8205) 4.2-0(8205) 1.1-5(2418) 16e2ed OK

If I'm reading this correctly, we have 210,282Mb of disk space available. This means that 210,282 x 2.6 min equals ... 54,813.2 minutes or 913.553 hours total capacity. Divide this among approximately 1200 users, that's (0.761294 hours) or a little over 45 minutes per user. Again, not accounting for any overhead like header info, faxes, text messages, etc.

Just looking for someone that's been through this before to validate my assumptions. Thanks in advance for enduring my anal approach to this.

Scott

 

[KenMeans]

Well with the GSM you get about 15,000 hours of voice on the MSS and with the G7.11 you are perrty close to what i think you would get, around 850 hours

Ken Means

http://www.tel-is.com

"I find that the harder I work, the more luck I seem to have."
- Thomas Jefferson (1743-1826)

 

[98Converter]

I'm trying to do the same math...

This is what I have for information:

Standard Availability:
G.711 = 1500 Hours
GSM = 7500 Hours

High Availability:
G.711 = 3000 Hours
GSM = 15000 Hours

MAS = 80 Gig
Standard MSS = (2) 80 Gig
High Avail MSS = (4) 73 Gig (hot-swappable)

I want to try and figure out as well, what these translate to for individual mailboxes.

Thanks,
CJH
MAS/MSS-HA 3.1





We are what we repeatedly do. Excellence, then, is not an act but a habit. ARISTOTLE 384-322 B.C.

 

[KenMeans]

You can only set it to number of minutes or mega bytes in the class of service

Ken Means

http://www.tel-is.com

"I find that the harder I work, the more luck I seem to have."
- Thomas Jefferson (1743-1826)