Station Side Recording - Vidicode APRESA Series Installation Manual

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5.9.2.

This method will record the calls from all phones on the network (inbound-, outbound- and local-calls). If

the RTP packets between the internal phones run via the PBX and the switches in the existing VoIP

network have no port-mirroring facilities, they must be replaced.

There are VoIP implementations were VoIP data is traveling together with other network data over the

companies Ethernet and we see separate Ethernet networks for VoIP. When VoIP is traveling together

with the regular network data on the same network, the VoIP packets (=real time!) must have priority

over the normal network packets. This is achieved by setting the QoS (quality of service) in favor of the

VoIP packets. So far this is standard configuration practice for VoIP telephony. A switch overruns when

the maximum supported internal bandwidth is exceeded. A network switch that operates close to his

bandwidth limit may fail in his port-mirroring function especially in situations where there are many

source ports to mirror. This is one of the reasons of the very wide pricing range of network switches we

see in the market. Choose the network switch wisely, because VoIP recording totally rely on the port-

mirroring function of the switch you select.

Obviously, the installer of a VoIP recorder has to work closely together with the clients network manager

as this manual cannot cover all topics relevant to VoIP environment and installation.

The next section presents several VOIP topology examples. All examples are based on enabling the

APRESA to 'see' the data to be recorded. To find the valid example that applies to your VoIP-situation,

just get the answer to the 3 questions below:

- Find out the Network type

- Find out the routing of the RTP packets

- Find out: record ALL calls or only in & out bound calls

INSTALLATION MANUAL APRESA

Station Side Recording

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