Lines and Telephones: Class of Service Options

Each line is assigned a Network Class of Service (NCOS) that controls the types of calls that can be made from that line. To allow a user to dial all domestic and international numbers at any time, for example, choose NCOS code number 1 (the default NCOS). Or if you want to restrict phone lines on courtesy telephones in public areas, NCOS codes 12 or 19 will more likely meet your needs. Our most commonly used NCOS options are listed below. Additional options are available for special circumstances.

Unless noted, all NCOS permit incoming calls, call transfers, and calls to University operators. All lines are blocked from making calls to 900/976 numbers. All lines permit emergency dialing.

PennNet Phone

Traditional Phone

To change one or more dialing restrictions for a line, contact your TSP (Telephone Support Provider).

Class of Service Options for PennNet Phone Service
Name	NCOS	Permissions	Restrictions	Suggested Uses
Unrestricted Domestic and International	1	International Domestic Local/Metro Philadelphia Campus Toll free	No calls to 900/976	Administrators with overseas contacts Faculty with international collaborators
Domestic Unrestricted	2	Local Metropolitan US Long distance Toll free	No international direct dialing calls No calls to Operator (9 +0) No calls to 900/976	Administrative users
Philadelphia Metropolitan Area	3	Local calls to 610 & 215 Toll free	No 1+ calls (except some 610) No calls to Operator (9 + 0) No calls to 900/976
Philadelphia Only	4	Philadelphia only Toll free	No calls outside city No calls to Operator (9 + 0) No calls to 900/976
Campus Only	9	Outgoing calls to other campus phone numbers	No 9 + calls No calls to 900/976	Hallway courtesy phones

If your office or department uses Meridian Business Sets (MBS), you can maintain even more control over calls made on your phone lines by combining Network Class of Service options with MBS's Authorization Code line feature.

Authorization codes can be assigned to phone users to allow you to restrict not only by type of call (the NCOS restriction), but also by the caller (only those using an authorization code can call out).

To change one or more dialing restrictions for a line, contact our customer service team and ask to speak to one of our Voice Consultants.

Class of Service Options for Traditional Phone Service
Name	NCOS	Permissions	Restrictions	Suggested Uses
Unrestricted Domestic and International	1	International Domestic Local/Metro Philadelphia Campus	No calls to 900/976	Administrators with overseas contacts Faculty with international collaborators
Domestic Unrestricted	2	Local Metropolitan US Long distance	No international direct dialing calls No calls to Operator (9 +0) No calls to 900/976	Administrative users
Philadelphia Metropolitan Area	3	Local calls to 610 & 215	No 1+ calls (except some 610) No calls to Operator (9 + 0) No calls to 900/976
Philadelphia Only	4	Philadelphia only	No calls outside city No calls to Operator (9 + 0) No calls to 900/976
Unrestricted (Authorization Code Required)	5	International Local Metropolitan US Long distance	No calls to 900/976
Domestic Unrestricted (Authorization Code Required)	6	Local Metropolitan US Long distance	No international direct dialing calls No calls to Operator (9+0)
Philadelphia Metropolitan Area (Authorization Code Required)	7	Local calls to 610 & 215	No 1+ calls (except some 610) No calls to Operator (9 + 0)
Philadelphia Only (Authorization Code Required)	8	Philadelphia only	No calls outside city
Campus Only	9	Outgoing calls to other campus phone numbers	No 9 + calls No calls to 900/976	Hallway courtesy phones
Local and Toll Free Calling Only	19	215, 484, 267, 610, 800, 887, 888 area codes	Authorization code required for all other calls	Conference area courtesy phones (no billable calls) Used by faculty/staff to easily track (and charge to grants) any authorized long distance calls

Lines & Services: Class of Service Options