G450 LSP in UK off of S8300 ICC in USA

[voippbx]

Need advise?

I have CM5.1 S8300/G450 in USA main ICC. I have another G450/LSP in UK. They UK site has 15 IP phones and in their own network region all working fine. If i call 4 digit over MPLS to UK from USA audio quality is great - actually loud. If a call initiates in or out from anywhere in UK into the UK E1 which terminates in the G450 in the UK the audio is very low and almost can't hear? I setup the locations based on location code 10 for UK but no luck. Am I missing admin setup that needs done differently for equipment in the UK? Can I adjust the E1 audio levels? Please help?

 

[eatlog]

You can try the enable Auto Gain settings on the IP phone or check the codec you can use G.729.

 

[Nick44]

Hi,
Where you say you set uk the location for the UK as 10, I presume you mean on the T1 PRI DS1 card?
Don't use 10. Use etsi. UK PRI standards have changed. etsi stands for European Telecom Standards Institute, and all new Euro PRI works to this. You made also have to digit stuff a 0 in the trunk form to get station displays working correctly.


Speak softly and carry a big switch

 

[voippbx]

eatlog and Nick44 - no luck. I changed the E1 to ETSI and it appeared louder when I called but they are stating inbound is very low? Any further thoughts? The G450/LSP is set to location 10 under change locations and the E1 is set on the DS1 form to ETSI.

They are all 16xx phones. Where would I change the auto gain?

 

[Nick44]

on the 16xx press menu, then scroll to advanced. AGC is under this option.

Speak softly and carry a big switch

 

[avaya4now]

try the AGC on the IP phones first. If that dont work you may need to look at the 2-party digital loss plan for PSTN to IP phones and maybe echo canellation settings but i never had much luck with those.

I think the PSTN group is 11 and IP phones group 18( you can check that). -3 is a 3db gain, other numbers are loss.