Alcatel OmniPCX Enterprise - How to monitor/listen an extension programmatically?

[hauskaki]

I was assigned a task to record calls for an extensions programmatically, so any incoming and outgoing calls should be recorded.
I haven't had a chance to look more for the device, only looked around and it seems they use two servers one is IBM (marked as SIP server) and the other one is HP (marked as PABX), and an Alcatel switch. The oprators seem to use telnet to interact with it.
I have built a very simple Asterisk PABX before but never done calls recording.
How do I record the calls on the Alcatel? Are there any integrations (API/SDK) for it? Thank you.