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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A newer version of the document can be found under the following link: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
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We have had the same problem with telecom in Germany for 3 months. Does this setting also help here?

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Nickel

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

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Nickel

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

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Nickel

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

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same issue in asia

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Nickel

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.

Outbond > Drop all high ports as range?

Is this correct?

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The same issue in UK:-( 

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Nickel

Yes, drop all outgoing RTP traffic.

Regards

Heiko

0 Kudos
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Same in asia

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Nickel

Thx for the fast answer  

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Nickel

The rules:

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

THX

Sven