REGEX Expressions in Cisco Expressway
By Maren Mahoney | 45 Min Video
Understanding REGEX Basics
Introduction to Regular Expressions (REGEX) and their syntax.
Common elements: character classes, quantifiers, anchors, groups, and alternation.
Application in Cisco Expressway
Use of REGEX for sophisticated URI pattern matching in call routing.
Examples of REGEX applied to SIP call handling, including call transformation and routing decision-making.
Creating Efficient Expressions
Best practices for writing concise and readable REGEX.
Performance considerations: how complex expressions may impact system performance.
Real-World Use Cases
Configuring voice dial plans, alias matching, and transformation rules.
Troubleshooting REGEX errors and unintended pattern matches.
Instructor Bio:
Maren joined SLI in 2008 as a technical instructor focusing on the Unified Communications curriculum. In addition to a CCSI, Maren holds current Enterprise and Data Center certifications and was awarded the CCIE Collaboration certification in 2015. Maren is also a Microsoft Certified Systems Engineer (MCSE). Maren was named a Cisco Designated VIP in 2019 and 2020. She achieved this recognition by actively participating in Cisco’s online support forums, sharing her IP Telephony expertise, and presenting Cisco webinars attended by engineers worldwide.