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VoIP Recording

blueButler provides flexible options for recording calls in a VoIP environment. blueButler iDR records IP phones, IP softphones and SIP trunks using an IP tap card connected to the LAN. Customers can deploy the VoIP packet filter interface to intercept VoIP packets on their LAN by placing IP taps at appropriate places in their network.

An IP tap provides packet-sniffing and filtering for the VoIP sessions associated with the phones that are to be recorded. A passive tap is connected on the mirror/span port of the core network switch that does not introduce a point of failure. Alternatively a passive tap can be installed on the physical network cables carrying the VoIP traffic.  When multiple network locations need to be tapped in order to receive all VoIP data, a network aggregator can be installed to consolidate the multiple data streams.

IP or MAC addresses can be configured to specify which IP phones should be recorded. Support is provided for most of the popular VoIP protocols including Alcatel, Avaya, Cisco, Ericsson, NEC, Nortel, Siemens, industry-standard SIP and others. Each server can record up to 300 concurrent VoIP sessions and multiple servers can be used to make the system as scalable as necessary. Work-at-home agents with hard IP phones or softphones can be recorded at the central site. In particular, there is no “dual-streaming” of IP packets required to record these agents. The IP tap detects the VoIP sessions that connect inbound and outbound calls from the media server(s) centrally.

For Mitel VoIP systems where encryption has been enabled, the Mitel MBG/SRC interface is used to record the calls on the IP phones. In other VoIP environments where calls are encrypted, T1/E1 and analog trunk taps can be used to record all incoming and outgoing calls to the PBX.