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(Microcom Networking Protocol) A family of communications protocols from Microcom, Inc., Norwood, MA, that have become de facto standards for error correction (classes 2 through 4) and data compression (class 5). In 1997, Compaq acquired Microcom.

Class 1: Half-duplex asynchronous transmission.
This is an earlier mode that is no longer used.

Class 2: Full-duplex asynchronous transmission.

Class 3: Full-duplex synchronous transmission
using HDLC framing techniques and 64-byte
blocks. Start/stop bits are stripped.

Class 4: Increased throughput. Shorter headers,
frames up to 256 bytes. Some vendors adjust frame
size based on line quality.

Class 5: Compresses data up to two times.

Class 6: Starts at V.22bis modulation and
switches to V.29 if possible. Uses pseudo-
duplexing ping-pong method for faster
turnaround of V.29 transmission.

Class 7: Compresses data up to three times.

Class 8: Not in use.

Class 9: Adds Piggy-back Acknowledgment** and
selective retransmission for more efficient
data transport. Provides better performance over
variety of links.

Class 10: Adds Adverse Channel Enhancements** for
better transmission on rural, cellular and other
noisy lines.

** Proprietary Microcom techniques.
References in periodicals archive ?
the convenience of retaining their existing number at the new location can avail the benefits of national MNP service.
By outsourcing to Q9, MNP ensures superior IT availability for customers and employees while reducing complexity and freeing up resources to concentrate on what they do best.
The former ARTP official said he had signed an edict on MNP guidelines in Senegal, including the process of selecting the firm to manage the running of the single platform for it.
The TRA also stressed that the subscribers should be aware of their obligations and responsibility outlined in the contracts signed with the licensee before submitting any MNP requests.
of MNP being introduced, with Asian subscribers most aware.
The collaborative partners of the MNP program include the Bureau of Naval Personnel (BUPERS), Navy Personnel Command (NPC), Navy Recruiting Command (NRC), Navy Manpower Analysis Center (NAVMAC), Navy Education and Training Command (NETC), and the Sea Warrior Program (PEO EIS PMW 240).
Staff trained specifically on MNP will also be posted at our sales centres.
This in turn strengthens our determination and confidence to continue efforts in this endeavour in making MNP a reality for the UAE next month.
The desired concentration of MNP were added to distilled water and sonicated for 30 min using an ultrasonic probe (pulsed) on a M1SONIX Sonicator 3000, with power = 9 (w).
The Pakistan Telecommunication Authority (PTA) statistics showed that the number of subscribers using MNP service have been increasing with the accelerated pace in the current fiscal year.
Delhi, Mumbai, Maharashtra and Gujarat Service comprise Zone I - MNP to be implemented by Sep 20, 2009.
Comparing the user-friendliness of the MNP with conventional HA notched implants, most surgeons in a study at the Ipswich Hospital NHS Trust, UK, preferred the open design of the titanium headplate.