Mitel Forums - The Unofficial Source

Mitel Forums => Mitel MiVoice Business/MCD/3300 => Topic started by: small_eyes on February 16, 2016, 12:15:57 AM

Title: SIP trunk sound quality
Post by: small_eyes on February 16, 2016, 12:15:57 AM

Hi,

we subscribe two different country DID number that use the same sip server from provider to forward to our OWN IP pbx.

let said Italy DID sound quality was good , but london did sound quality was very poor.

for london, we can hear the ppls sounds from London clearly when they dial that number, but another side complaint poor sound quality, cant hear it clear.

any thought?

Title: Re: SIP trunk sound quality
Post by: x-man on February 16, 2016, 05:14:18 AM

They have a problem with their internet link on the up side?

Title: Re: SIP trunk sound quality
Post by: x-man on February 16, 2016, 05:15:10 AM

sorry that should have been down side....

Title: Re: SIP trunk sound quality
Post by: petr.necas on February 16, 2016, 05:23:55 AM

I would sniff the SIP signalling and RTP data (you may need to enable port mirror on a switch), analyze the data in Wireshark and then escalate the problem to the SIP peer.