Sip Trunking

Sip Trunking is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Consultants - General
• Communication Services, Nec

North American Industry Classification System (NAICS) Categories:

• All Other Telecommunications
• Other Management Consulting Services

Standard Industry Classification (SIC) Categories:

• Communication Services, Nec
• Business Consulting Services, Nec