Chapter 13 Voice Over IP (VoIP)

Required bandwidth for FAX Connection

32IPLA-A/16VCTA-A

 

Connection Conditions

 

Required Bandwidth (One-way)

 

 

T.30, G711, Payload=40ms

 

150 kbps (estimated)

 

 

 

 

 

 

 

T.30, G729a, Payload=40ms, Communication

23.6 Kbps (FAX Payload=78byte)

 

 

speed=14.4Kbps

 

 

 

 

(No IP Header compression in Router)

 

 

 

 

 

 

 

 

 

T.30, G729a, Payload=40ms, Communication

16.6 Kbps (FAX Payload=78byte)

 

 

speed=14.4Kbps

 

 

 

 

(with IP Header compression in Router)

 

 

 

 

 

 

 

 

 

• 8IPLA/24IPLA

 

 

 

 

Connection Conditions

Required Bandwidth (One-way)

 

 

 

 

 

 

G.711 pass-through, Payload=40 ms

72 kbps (FAX Payload=320 byte)

 

 

(No IP Header compression in Router)

 

 

 

 

 

 

 

 

G.711 pass-through, Payload=40 ms

65 kbps (FAX Payload=320 byte)

 

 

(with IP Header compression in Router)

 

 

 

 

 

 

 

 

G.726 pass-through, Payload=40 ms

40 kbps (FAX Payload=160 byte)

 

 

(No IP Header compression in Router)

 

 

 

 

 

 

 

 

G.726 pass-through, Payload=40 ms

33 kbps (FAX Payload=160 byte)

 

 

(with IP Header compression in Router)

 

 

 

 

 

 

 

 

Note: The data in the above tables does not include MAC Header.

Required bandwidth for Modem Connection

 

Connection Conditions

 

 

Payload

 

 

IP Header

 

Required

 

 

 

 

 

compression in

 

Bandwidth (One-

 

 

 

length

 

 

 

 

 

 

 

 

 

Router

 

way)

 

 

 

 

 

 

 

 

 

 

 

 

40 ms

 

 

 

 

72 kbps

 

G.711 pass-through

 

 

30 ms

 

 

 

 

74.67 kbps

 

 

 

20 ms

 

 

 

 

80 kbps

 

 

 

 

 

 

 

 

 

 

 

 

10 ms

 

 

No

 

96 kbps

 

 

 

 

40 ms

 

 

 

40 kbps

 

 

 

 

 

 

 

 

 

G.726 pass-through

 

 

30 ms

 

 

 

 

42.67 kbps

 

 

 

20 ms

 

 

 

 

48 kbps

 

 

 

 

 

 

 

 

 

 

 

 

10 ms

 

 

 

 

64 kbps

 

 

 

 

40 ms

 

 

 

 

65 kbps

 

G.711 pass-through

 

 

30 ms

 

 

 

 

65.33 kbps

 

 

 

20 ms

 

 

 

 

66 kbps

 

 

 

 

 

 

 

 

 

 

 

 

10 ms

 

 

Yes

 

68 kbps

 

 

 

 

40 ms

 

 

 

33 kbps

 

 

 

 

 

 

 

 

 

G.726 pass-through

 

 

30 ms

 

 

 

 

33.33 kbps

 

 

 

20 ms

 

 

 

 

34 kbps

 

 

 

 

 

 

 

 

 

 

 

 

10 ms

 

 

 

 

36 kbps

Page 13- 24

UNIVERGE NEAX 2000 IPS Request for Proposal (RFP) Reference Guide

 

Issue 6

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NEC 2000 IPS manual Required bandwidth for FAX Connection, Required bandwidth for Modem Connection