This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

UTM distorts IP phones

Our SG 105 Firewalls are distorting the ip phone calls. We tried it without the firewall and the calls were not distorted anymore. Is there any helping page / recommendations for configuring the firewalls correctly for ip telefon services?

This thread was automatically locked due to age.

Parents

0 dirkkotte over 6 years ago

check IPS / UDP-Flood protection.

Repeatedly this interfered the phones.

Try to disable UDP-flood-protection ... if this help, reenable the Settings and create an exception.

Dirk

Systema Gesellschaft für angewandte Datentechnik mbH // Sophos Platinum Partner
Sophos Solution Partner since 2003
If a post solves your question, click the 'Verify Answer' link at this post.
Cancel
Vote Up 0 Vote Down

Cancel
0 SEBB over 6 years ago in reply to dirkkotte

The UPD-flood-protection was never active.
Cancel
Vote Up 0 Vote Down

Cancel
0 Louis-M over 6 years ago in reply to SEBB

There is a voip feature on the UTM where you put your clients into one part and the servers on the internet into another. This then loads rules into the firewall to assist with this.

Are you using this? If not, you may be looking at manual QoS rules etc to rectify this.
Cancel
Vote Up 0 Vote Down

Cancel

Reply

0 Louis-M over 6 years ago in reply to SEBB

There is a voip feature on the UTM where you put your clients into one part and the servers on the internet into another. This then loads rules into the firewall to assist with this.

Are you using this? If not, you may be looking at manual QoS rules etc to rectify this.
Cancel
Vote Up 0 Vote Down

Cancel

Children

0 StealthyM over 6 years ago in reply to Louis-M

Hi Louis, can you tell me where this voip feature is?
Cancel
Vote Up 0 Vote Down

Cancel
0 Louis-M over 6 years ago in reply to StealthyM

Network Protection > Voip
Cancel
Vote Up 0 Vote Down

Cancel