IP Office 500 V2 system - Unclear Calls

[kirank4k]

Recently we have upgraded AVAYA IP OFFICE from 412 to IPO 500 V2. Since then we are having VOICE CLARITY issues in all extensions (DIGITAL, ANALOG & IP). While experiencing this issue I have disconnected and tested the expansion cards (DIGTIAL & ANALOG) one by one before rebooting, I experienced the same issue in all of them even the digital card. This has only cleared after reboot.

We also replace the control unit IP500V2 and VCM 64 Card. But still the problem persists. This is happening twice a day now.

We would request you to share some suggestions/advice on this issue

[ista4]

What is the software version on the IP500v2?

[pdgavin]

IP Office 500 V2 system - Unclear Calls

There is not enough information, when do they experience voice quality issues, is it extension to extension or extension to trunk, if it is on trunk calls what type of trunks do they have? Do they have both PRI and Analog trunks and if so is it happening on only analog trunk calls or only PRI or both? If it is happening extension to extension is it happening with calls from a digital extension to a digital extension or only IP to digital or IP to analog etc. Does it happen to calls from outside not involving an extension, for example a call to the auto attendant? What trouble shooting has been done? Is the system properly grounded? There are too many variables, the best solution is to work with your distributor or direct with Avaya T3 to trouble shoot the issue. Take a look at this Job Aid first and if it does not apply open a case of trouble with your distributor to get some help troubleshooting it:

http://marketingtools.avaya.com/knowledgebase/businesspartner/ipoffice/mergedProjects/bulletins/techtips/237_techtip.htm

Pete

[kirank4k]

VOICE QUALITY ISSUES happening extension to extension beat analog, digital and ip extensions. the grounding is proper and confirmed the Earthing LIVE to EARTH is 0 VOLTS & Neutral to Power is 240 V.

[kirank4k]

when do they experience voice quality issues, this is on/off especially in the mornings and evenings

is it extension to extension or extension to trunk, Both

if it is on trunk calls what type of trunks do they have? H323 trunk and two E1 trunks

Do they have both PRI and Analog trunks and if so is it happening on only analog trunk calls or only PRI or both? Both

If it is happening extension to extension is it happening with calls from a digital extension to a digital extension or only IP to digital or IP to analog etc. digital-digital, analog to digital, analog to analog, analog to IP and vice versa, only calls on CM IP-IP are not affected

Does it happen to calls from outside not involving an extension, for example a call to the auto attendant? yes

What trouble shooting has been done?

- Mounted control unit at a central location and changed cabling as recommended by Avaya (blue cables with the required frequecy)
- Changed codec settings from to G711 A-law
- Earthing re-done as recommended by Avaya and verify by our power team/GG
- Changed VoIP settings on H323 trunk connecting IPO and CM from automatic mode to G711 A-law
- Changed the network cabling for IPO and CM to terminate directly to the main switch thus bypassing the VoIP switch.
- Upgraded our Voice mail Pro client from 3.0.4 to 6.0.22


Is the system properly grounded? yes