SIP Configuration for Local Symmetric NAT Traversal

Applies to: Tmedia 3.0, 3.2, 3.3; SBC 3.1, 3.3

It is assumed, that a SIP NAP or a SIP Open NAP has already been created and is allocated.

To configure a Local Symmetric NAT Traversal

1. Select NAPs in the Navigation Panel:

NAP NavigationMenu

1. Select an existing SIP NAP in the list:

EnableSipISipT 1

1. Click Network Address Translation (NAT):

Configuring remote or local nat traversal

1. We assume that a local NAT has been created and allocated. SBC/Tmedia can be configured for RTP messages traversing a local NAT as follows:

• No NAT: SBC/Tmedia is not behind a NAT for RTP messages.

• Existing [Local NAT name] item: local NAT name that will be used for the local RTP traversal method.

Select the appropriate method for RTP NAT Traversal.

selecting local method for rtp nat traversal

1. We assume that a local NAT has been created and allocated. SBC/Tmedia can be configured for SIP messages traversing a local NAT as follows:

• No NAT: SBC/Tmedia is not behind a NAT for SIP messages.

• Existing [Local NAT name] item: local NAT name that will be used for the local SIP traversal method.

Select the appropriate method for SIP NAT traversal.

selecting local method for sip nat traversal

1. Click Save.