Nortel Call Accounting

14+ Years Experience with Nortel * Infortel Select for Nortel platforms * TM/OTM Installation, Training & Support

ISI Telemanagement Solutions, Inc. is the proven leader when it comes to Call Accounting for Nortel platforms and customers. We have been providing services to Nortel and their customers since 1995 and are a certified Nortel Developer Partner.

We offer our own, award-winning Infortel® Select Call Accounting solution, which can be integrated on-site to any Nortel switch or PBX or, can be done as a fully outsourced service leveraging our vast Telecom Service Bureau and data centers. ISI also offers installation, training and support for Nortel's Meridian Administration Tools (MAT), Optivity Telephony Manager (OTM) and Telephony Manager (TM) products.

For more information, please visit the following pages:

• Infortel® Select Call Accounting
• TM 3.x/4.x Services
• MAT/OTM Services