Dịch vụ điện thoại qua mạng IP 6

Tài liệu tham khảo ngành viễn thông Dịch vụ điện thoại qua mạng IP

Call Signalling MessageRAS Message

Setup (3)

Connect (6)Alerting (5)Call proceeding (4)ACF/ARJ(2)

Setup (3)

Call Signalling Message

Connect (7)Alerting (6)Call proceeding (5)

RAS Message

Setup (4)Call proceeding (5)

Alerting (6)

Connect (8)

Thiết lập cuộc gọi - Điểm cuối gọi đã đăng ký, báo hiệu gián tiếp.

Call Signalling MessageRAS Message

Setup (3)

Connect (6)Alerting (5)Call proceeding (4)

ACF/ARJ(2)ARQ(1)

ACF/ARJARQCall proceeding Call proceeding Setup

Setup

Release CompleteFacility

Call Signalling MessageRAS Message

AlertingCall proceeding

ACF/ARJARQ

Phô lôc B: C¸c ch÷ viÕt t¾tADPCM: Adaptive Difference PCM.

ATM: Asynchronous Transfer ModeCQ: Custom Queuing

CRTP: Compress Realtime Transport ProtocolDSCP: Diff Serv Code Point

FIFO: First In First Out

GSTN: General Switched Telephone NetworkIP: Internet Protocol

ISDN: Integrated Service NetworkLAN: Local Area Network

LFI: Link Fragment and InterleavingPCM: Pulse Code Modulation.PQ: Priority Queuing

PSTN: Public Switched Telephone NetworkQoS: Quality of Service

RAS: Registration, Admission, and Status.RSVP: Resource Reservation ProtocolRTCP: RTP Control Protocol

RTP: Realtime Transport Protocol.SS7: Signaling System 7

TCP: Transport Control ProtocolTDM: Time Division Multiplexing.ToS: Type of Service

Tµi liÖu tham kh¶o

[1] §iÖn tho¹i IP C¬ héi hay th¸ch thøc - T¹p chÝ “Bu chÝnh ViÔn Th«ng” th¸ng

[2] CÊu tróc vµ thiÕt kÕ thiÕt bÞ cæng IP Telephony - ThS TrÇn Minh TuÊn - T¹p

chÝ “Bu chÝnh ViÔn Th«ng” th¸ng 10/1999.

[3] Bridging the gap to IP telephony - Paul G A Sijben and Louise F A Sepergel

- Bell Labs Technical Journal October-December 1998.

[4] Packet Telephony - Sudhir R Ahuja and Krishna G Murti - Bell Labs Technical Journal Spring 1997.

[5] Data and Computer Communications- William Stalling, PhD - Volume 1,

Volume 2.

[6] Internet Telephony: Architecture and Protocols an IETF Perspective -

Henning Schulzrinne and Jonathan Rosenberg.

[7] Re-engineering telephone system - HENNING SCHULZRINNE Dept of

Computer Science and Dept of Electrical Engineering, Columbia Universityhttp://www.cs.columbia.edu/~hgs/Research/IRT/Topics.html

[8] Visual telephone systems and equipment for local area networks which

provide a non-garanteed Quality of Service

DRAFT ITU-T Recommendation H.323.

[9] RTP: A transport Protocol for Realtime Application, RFC 1889

[10] http://www.Cisco.com

[11] A Primer on the H.323 Series Standard.

[12] Convergence between Public Switching and the Internet- IEEE

Comm-unication Magazine January 1998

[13] ITU-T G.729 Annex A: Reduced Complexity 8kb/s CS-ACELP Codec for Digital