TekSIP supports auto provisioning of IP phones based on SUBSCRIBE / NOTIFY PnP mechanism.
You can deploy TekSIP as a proxy for standard SIP phones to connect to a Microsoft Lync system. Lync supports IP phones only if they support SRTP with SIP TLS transport. TekSIP register standard SIP phones on behalf of them to a Lync system and maintain their presence status. Please click here for more details.
What's new in this version:
A new routing entry type added. You can specify a routing entry for a prefix which routes calls to a dynamically registered endpoint (Extension) in SP edition. Lync proxy features are improved.