topic Re: can't hear voice when microsoft team to cisco phone throught check point firewall. in Firewall and Security Management

can't hear voice when microsoft team to cisco phone throught check point firewall.

kyithuaung2023 — Wed, 13 Sep 2023 09:13:50 GMT

Dear All,

I have an issues that is I can't hear voice when I call Microsoft team to cisco phone (there is sip, cucm server) through to firewall. Do you have any solutions or similar case. I got microsoft team requested some changes that is disable to SIP ALG. I already disabled and updated latest hot fix version in check point (HOTFIX_R81_10_JUMBO_HF_MAIN Take: 110).

My issue is following as;

Cisco Phone to Cisco Phone - OK

Cisco phone to Microsoft team - OK

Miscrosoft Team to Cisco Phone - can reachable , ringing and pick up but can't hear.

Could you please any solutions and suggestions help for me?

Thanks and Regards,

Kyi Thu Aung

kyithuaung007@gmail.com

Re: can't hear voice when microsoft team to cisco phone throught check point firewall.

G_W_Albrecht — Wed, 13 Sep 2023 09:24:55 GMT

What can you see in the logs - are packets from that VoIP traffic dropped and for which reason ?

Re: can't hear voice when microsoft team to cisco phone throught check point firewall.

Chris_Atkinson — Wed, 13 Sep 2023 09:34:31 GMT

Are affected clients connected on the LAN or Remote Access VPN etc?

Re: can't hear voice when microsoft team to cisco phone throught check point firewall.

kyithuaung2023 — Wed, 13 Sep 2023 09:50:06 GMT

Dear G_W_Albrecht,

I didn't see any drop VoIP traffic drooped in log. I have

Re: can't hear voice when microsoft team to cisco phone throught check point firewall.

G_W_Albrecht — Wed, 13 Sep 2023 10:00:34 GMT

Did you go thru sk95369: ATRG: VoIP already ? Contact TAC for debugs - hard to find the reason if there are no drops in Logs...