outgoing voice issue

[Need]

VERSION: 2.8-393c BUILD: 140403-1731
Vicibox standard 64 iso insatlled on small box in the office

Hi guys sorry havent posted full spec as im on my phone, i have a small issue

Basically installed via vicibox standard iso onto a old machine everything working fine on the lan

The problem i am facing is when i forward ports and try externally i the cutomer on the other end cant hear anything i say, everything seems to be working fine i can hear them calls are taking place etc but they can not hear me.

I have forwarded 5060 udp and tcp but still nothing i am using a linksys adsl router

Any help would be great thank you

[Need]

Sorry im back in the house so i will post all info...

ViciBox5.x86_64-5.0.3 from iso | Version: 2.8-393c Build: 140403-1731 | Single Server | No Extra Hardware | No Extra Software after installation
Box = i7 3770 | 8 GB Ram | 1TB HDD | Not sure what HDD and MOBO

As i explained above, I have successfully installed ViciBox5.x86_64-5.0.3 Standard to a box that i had in the office. Everything went well and i could reach vicidial via my browser on the lan 192.168.1.69

Setup dial plan, sip carrier, users, admins, phones, camps, lists etc

Know when i test local i can log in dial and make calls and everything is working well
The problem i am having is External.

What i have done:
Forward Port 80 to 192.168.1.69 ( Vicidial Server )
Changed softphones to register via external public ip
Forward Port 5060 UDP and TCP to 192.168.1.69

So i Can access the Web Interface no problem, I can also log in (Phone rings and states your are the only 1 in this conference)
Everything seems fine untill i make a call to myself ?

I dial the number 07777777777 it rings and answers and i can hear that fine, But when i speak theirs nothing ?

I am using SIP and like i said when local everything is fine so i gather it would be some sort of firewall issue ?

ive tried triggering all kinds of ports but with no luck at all

If someone could shed some light on this i would be so grateful

Thanks in advance
Mark

EDIT ::: Forgot to state i am behind a Cisco Linksys router

[rrb555]

you must also open the UDP ports 10000 to 20000

[Need]

rrb555 your a life saver thank you mate, Works a treat

[rrb555]

pleasure....