Call Data Record (CDR) collection from many Telecom switches, e.g. Siemens EWSD, Lucent 5ESS, Alcatel 1000 S12, is still performed over legacy CMIP/FTAM/TP0/X.25 interfaces.
Historically CDR collection platforms were built using OSI CMIP/FTAM software stacks, kernel drivers that included OSI TP0 software and physical X.25 cards/drivers built into the OS platforms. See figure on the right.
The maintenance of these CDR platforms has become difficult for service providers as the combinations of operating system, software, card and drivers have failed to keep pace with operating system development. This has resulted in problems sourcing, upgrading and maintaining some of the applications listed below:
RFC 1613 (X.25 over TCP/IP - XOT) addresses this problem by removing the need for X.25 cards and drivers in the host. X.25 messages are delivered over TCP/IP to an XOT router which delivers the X.25 messages to the switch. See figure on the right.
The Xelas XOT user stack further simplifies the problem through:
Customers include : Antel Uruguay, Teoco, Telkom South-Africa
For more information email: info@xelas.com
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