SIP Normalization Scripting

Supporting CUBE NAT Integrations without Firewall ALG

Overview Recently had a customer which wanted to connect to a public ITSP (Flowroute). Their network design required a dual-interface CUBE deployment model, with an “inside” private… Read more “Supporting CUBE NAT Integrations without Firewall ALG”

Had a strange requirement today. Needed to replicate a behaviour that is apparently quiet common on Asterisk, but haven’t seen it before myself. Our ITSP implemented a… Read more “CUBE SIP Profiles – Normalizing Incorrect RURI/To Headers using Diversion”

Had to implement an Auto Attendant in Unity today. The client had a requirement to send after-hours calls out to the PSTN, but had to be routed… Read more “Lua Script Solves Call Forward Masking”

A friend of mine at Cisco TAC pinged me a few days ago, asking to assist him with a case he’s working on that required a sip normalization… Read more “Lua Scripting – Replacing FQDN with IP in SIP Headers”

I’ve been working as design and deployment lead on a globally significant full Collaboration on-premise deployment for the last 3 months (think 120 CUCM across 9 Leaf… Read more “Lua Scripting – Proxied Manager Breaks MWI for Centralized CUC Behind SME”