1616 echo

[kyle1532]

hey guys,

i have a couple of 1616 phones. they are working, but when i make a call the first 10-15 seconds has a bad echo but then goes away.

is there any settings i could look at changing?

thanks

 

[kwing112000]

Under extensions do you have a codec hard set or is it auto? I usually set them to G711 on the LAN.

Kevin Wing
ACS- Implement IP Office
ACA- Implement IP Office
Carousel Industries

 

[amriddle01]

Is this internal calls or external or both? What type of lines if only external calls effected?

ACS - IP Office Implement

"What the Crocodile Hat....was that?

 

[kyle1532]

amriddle01

we are using analog lines...i know...this sucks!!!

echo on external calls. internal sounds great.

the codec is set to auto. i will go ahead and change to G711 to see how that works.

thanks!

 

[rcoleman65]

Are your analog lines true analog lines? I started getting this 10-15 second echo problem when I switched from copper line analog to voip "analog" lines.

 

[kyle1532]

yes they are true analog lines. i have switched the codec to G711 but still get the same problem.

is there anything else i can check???

thanks again!

 

[VoIPP]

Is this an IPO 500 or a IPO 400.

On the 400 with the 5VCM I have never been able to resolve the echo issue on IP Phones. The 4VCM cards seem to work OK.

 

[amriddle01]

Have you played with the echo cancellation settings on the trunk card yet?

ACS - IP Office Implement

"What the Crocodile Hat....was that?

 

[kyle1532]

it is a 406v2 with a VCM5. i will change that out and let you know how it goes.

thanks!

 

[hairlessupportmonkey]

there is well documented information regarding echo on analoge lines from an IP based source. (especially SIP)

you need to employ line echo technology, which i dont think the IPO has built in on the trunk side.

you could

a) upgrade to ISDN
b) employ a media gateway like the Quintum AS for analog to ISDN trunks. You IPO plugs into the ISDN end of the Qunitum. this will resolve your echo issue.

 

[tlpeter]

The VCM5 has just a little echo cancelation
The newer VCM4,8 etc have more echo cancelation





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