Specifications

VoiceFinder VoIP Gateway Configuration Guide (APOS 2.0) Release Version 3.1
AddPac Technology Co., LTD
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3.10.5.3. enable-ping
Use this command to enable-ping. To disable this feature, use the no form of this command.
enable-ping ENTITY-NAME
no enable-ping
3.10.5.3.1. Syntax
Keyword / Argument Description
entity-name Firewall/NAT Server-Entity
3.10.5.3.2. Command Default
No default behavior or value.
3.10.5.3.3. Command Modes
SIP configuration
3.10.5.3.4. Usage Guidelines
When the gateway operates under PAT/NAT or firewall environment, incoming VoIP call can be
problematic.
The cause of the problem is due the gateway, located in the private environment, exchanges
packets with the public network outside through PAT/NAT.
However, the network equipment located in the public network does not recognize IP and port of
the gateway, so incoming VoIP call can not be processed.
For incoming and outgoing VoIP calls to be possible in the private environment, set up the public
IP address of PAT/NAT server to the gateway and configure PAT/NAT server with the static
mapping of VoIP port information of the gateway.
To take complement measures of this problem, Nortel’s enable-ping is used for incoming outgoing
of normal communication with Nortel’s SIP proxy.
*This feature is Nortel-specific.