cancel
Showing results for 
Search instead for 
Did you mean: 
Create a Post
R89_99
Nickel

VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

A newer version of the document can be found under the following link:

 

VoIP Issue and SMB Appliance (600/1000/1200/1400) [new version] 

 

Because of a technical problem in the Checkmates Portal I start with a new account. If you want to follow me, please click "Follow me" in the new account.

13 Replies

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

We have had the same problem with telecom in Germany for 3 months. Does this setting also help here?

R89_99
Nickel

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

I had this issue with telekom VoIP/DSL Connections. I think it is the same issue.

You see many entries per second in "fw ctl zedebug drop | grep fwconn_key_init_links " if the issue occure.

Regards

Heiko

Silvia_Day
Nickel

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

We had the same problem with switzeland provide.

Article is very helpful.

Another question, do you usually use the original SIP services?

Best Regards

Sylvia

R89_99
Nickel

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

Hi Silvia,

Rules:

Incomming >  original SIP service  > from provider VoIP server to internal VoIP server

Incomming >  udp range RTP (from 1025 to 65535) > from provider RTP server to internal RTP server

Outgoing >     original SIP service  > from internal VoIP server to provider VoIP server

Outgoing >     udp range RTP (from 1025 to 65535) > Drop

Regards

Heiko

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

same issue in asia

R89_99
Nickel

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

At first I thought it was a problem with the Telekom in Germany. Now I think it's a fundamental problem with VoIP and RTP.

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

Outbond > Drop all high ports as range?

Is this correct?

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

The same issue in UK:-( 

Highlighted
R89_99
Nickel

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

Yes, drop all outgoing RTP traffic.

Regards

Heiko

0 Kudos

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

Same in asia

Silvia_Day
Nickel

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

Thx for the fast answer  

0 Kudos
R89_99
Nickel

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

The rules:

Re: VoIP Issue and SMB Appliance (600/1000/1200/1400) [old]

We had that problem for two months. This article was very helpful and solved our problem with VoiP.

THX

Sven