Authorize Voip packet on cisco 887 router

[r.brahmi1]

Hi,

I need to configure a Cisco 887 router to allow VoIP packet,

I have a Cisco 887 Router that I used it for forward VoIP traffic of OneX Avaya application

but the onex remains in the partially connected state 

Please what security services on Cisco router are interfering with VoIP packets,

Thanks.

[Mark Malone]

Hi

cisco routers are open by default they don't block anything out of the box unless configured to do so.

do you have any acls in place make sure the required ports are open and ports are not being blocked there

[r.brahmi1]

Hi,

No I don't have any acls, and regarding the ports I configured a global NAT static instead of configuring port by port  expmle:

Ip nat inside source static 10.100.118.3  81.192.142.25,

is this configuration is correct or I have to explicitly open ports

Thanks

[Mark Malone]

Hi

no you need to open the specific ports with tcp/udp for nat and it may be required to use a range which some voice service require you to

some examples in this

https://supportforums.cisco.com/discussion/11593786/nat-udp-port-range-forwarding-howto

[r.brahmi1]

Thank you so much

I will test this configuration today 

Regards,