[Freeswitch-users] [EXTERNAL] Re: Freeswitch in google cloud platform

Karanath sachidanandan, Sanooj SANOOJ_KARANATH_SACHIDANANDAN at homedepot.com
Thu May 24 17:30:26 UTC 2018

Sorry for confidentiality statement in mail ,It is getting added by server

@Joel Serrano<mailto:joel at textplus.com> yes it make sense, let me experiment more


From: FreeSWITCH-users <freeswitch-users-bounces at lists.freeswitch.org> on behalf of Joel Serrano <joel at textplus.com>
Reply-To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
Date: Thursday, May 24, 2018 at 1:26 PM
To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
Subject: [EXTERNAL] Re: [Freeswitch-users] Freeswitch in google cloud platform

In gcloud docs it says:

"TCP Proxy Load Balancing supports the following ports: 25, 43, 110, 143, 195, 443, 465, 587, 700, 993, 995, 1883, 5222"

They are not mentioning protocols or applications, I don't know if you setup kamailio to listen for example on port 443 if it might work? Clients would have to connect to X.X.X.X:443 though... (which is solvable using SRV records).

This is a suggestion to test, I'm really not sure myself if it would work. I don't know if google does straight TCP proxy or if it has any sort of application level awareness, in such case it would definitely not work (as the default 5060 SIP port is not listed). Giving the example they have a little further down in the docs, (talking about setting up apache (http) to listen on port 110 (pop3), and using curl to test) makes me think that it could work.

Client -> Kamailio -> FreeSWITCHs = Works... widely used.
Client -> GCP Load Balancer -> Kamailio -> FreeSWITCHs = No idea, best way to find out is to test, one thing for sure is you will have to mess around a lot in the config file to get the IPs right in all the headers.

Does what I'm saying makes sense? Please correct me if I'm wrong.


On Thu, May 24, 2018 at 9:58 AM, Michael Jerris <mike at jerris.com<mailto:mike at jerris.com>> wrote:
A tcp load balancer without sip support wouldn’t be sufficient.  You’d need something with an understanding of sip like Kamailio or OpenSips to do that.

Also, in regards to your confidentiality statement on your email, please note that no emails to the list are confidential, and we will not remove emails from the list archive.  Please in the future remove your confidentiality statement from emails and take this as notice that they are not and we will take no action to remove them from the archives in the future (yes we have been asked in the past to do this, which is why i have to make this statement).

On May 24, 2018, at 12:54 PM, Karanath sachidanandan, Sanooj <SANOOJ_KARANATH_SACHIDANANDAN at homedepot.com<mailto:SANOOJ_KARANATH_SACHIDANANDAN at homedepot.com>> wrote:

Hi Guys ,
Anybody using Freeswitch in Google cloud platform ?  I am trying to have a multi region freeswitch installation in google cloud  with Sip load balancer Kamailio . But challenge is to have a multi region load balancing.  Google’s TCP load balancer looks promising but don’t support Sip ports(5060, 5061)

Any thoughts on that or any other suggestion?  Thanks in advance


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