21 Jun
2007
21 Jun
'07
11:36 a.m.
Dear All:
I've tried many methods to add Max-Forwarsd header into ACK message (message
8), all methods I tried were fail.
According to RFC 3261 8.1.1.6, Max-Forwards must exist in this ACK message.
Can anyone tell me how to add a header into ACK message? Thank you very
much.
UA11 : NUT(Proxy 1) : UA12
| : | : |
|-------:------->| : | 1. INVITE
|<------:--------| : | 2. 407
|-------:------->| : | 3. ACK
| : | : |
|-------:------->| : | 4. INVITE
| : |-------:------->| 5. INVITE
|<------:--------| : | 6. 100
| : | : |
| : |<------:--------| 7. 486 (Busy Here)
| : | : |
| : |-------:------->| 8. ACK
| : | : |
|<------:--------| : | 9. 486
| : | : |
|-------:------->| : |10. ACK
| : | : |
Best Regards,
Fangyu Ling