|
The following table compares the digital protocols supported for
use by Message Networking.
|
TCP/IP protocol |
Encoding algorithm |
Bytes/ second |
Average voice message (60 seconds) including overhead |
Average fax message (3 pages) including overhead |
Average subscriber update length (from/to, assuming a 3-second
voice name) |
TCP/IP port used |
|
AUDIX Digital |
Code-Excited Linnear Programming (CELP) |
2K |
135K bytes |
230K bytes |
6K bytes |
5500 (decimal) |
|
Aria Digital |
Sub-band Coding (SBC) |
3K |
250K bytes |
450K bytes |
9K bytes |
4000 (decimal) |
|
Serenade Digital |
Continuously Variable Sloped Delta Modulation (CVSD) |
3K |
250K bytes |
450K bytes |
9K bytes |
22136 (decimal) |
| SMTP/MIME |
Global
Specification for Mobile Communication (GSM) |
1.7K |
140K
bytes |
350K
bytes |
LDAP-based:
24K bytes |
25
(decimal) |
| G.711
µ-law and A-law |
8K |
660K
bytes |
25 for messages (55389 for Avaya MM LDAP, 56389 for Message
Networking LDAP) |
|
VPIM |
Adaptive Digital Pulse Code Modulation (ADPCM) |
4K |
330K bytes |
350K bytes |
12K bytes |
25 (decimal) |
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