Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Arabic
Chinese
French
German
Italian
Japanese
Polish
Portuguese
Spanish
Swedish
+
G
o
o
g
l
e
|
Forvo
|
+
ISDN protocol reference model
This HTML5 player is not supported by your browser
telecom.
综合业务数字网协议参考模型
Add
|
Report an error
|
Get short URL
