Re: [Linphone-users] comfort noise and opus

[Nabeel]

Thanks for the tip. Would the same fix work in asterisk?

And is Opus good for recording voicemail? Wouldn't the resulting file sizes be too large for voicemail storage in a database?

Nabeel

On 20 Sep 2016 8:44 p.m., "Russell Treleaven" <address@hidden> wrote:

I noticed something that I thought I would share for the benefit of others.

FreeSWITCH Version 1.5.15b+git~20141215T224714Z~0b414a8de8~64bit (git 0b414a8 2014-12-15 22:47:14Z 64bit)

Linphone 3.9.1

To reproduce

place a call with linphone using opus to a freeswitch server voicemail extension.

listen to the outgoing message and leave a voicemail after the prompt.

observed

Fairly loud comfort noise is heard while leaving the message.

expected

should hear silence instead of comfort noise.

If we change the codec to pcmu we hear silence instead of comfort noise.

Comfort noise is heard because after the outgoing message freeswitch stops sending rtp.

workaround

add this to the voicemail extension before the answer application.

<action

application="set"

data="">true"

></action>

Sincerely,

Russell Treleaven

_______________________________________________
Linphone-users mailing list
address@hidden
https://lists.nongnu.org/mailman/listinfo/linphone-users