[asterisk-users] function Echo() doesn't work

[Karsten Wemheuer]

Hi Felix,

Am Mittwoch, den 16.02.2011, 12:47 +0100 schrieb Felix Dong:
> Hi guys, 
> 
> 
> the function Echo() did work on CAPI, but doesn't work for SIP
> connection. Can anybody help?
> thanks a lot.

are You trying to echo between local phones or is it a external call via
some VoIP Provider?

In latter case: do You forward the RTP traffic from external to Your
asterisk? The relevant ports can be configured in rtp.conf. Configure at
least 4 ports per connection. Configure port forwarding for this range
of UDP ports in Youe NAT-device (e.g. router or firewall).

HTH,

Karsten

> 
> 
> best regards,
> 
> 
> Felix
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