[SIPForum-discussion] Problem with fax communication

[trungdo]

Hi Ayyanar,

The problem seem be from Calling site. He send invite message 2 time.

The first time in frame 31 is normally.
The second time is frame 34 with username and password ( you can remove the
codec G.723 )

And the third time is frame 49 with only codec G.711A ).

The second problem is from SIP server ( it¹s Asterisk server right )

The called send invite message switch to T.38 with speed 14400 but when this
message went though SIP server, the SIP server only send to calling site
with speed 9600.
The second issue that the SIP server send SIP 200 OK with SDP T.38 have many
media Attribute ?

The calling site didn¹t receiver all V.21 preable frame and DNS message ?

Please check again your confiugre T.38 in SIP server.

Thanks

Trung Do



-- 
Trung Do
Systems Engineer APAC
Patton Electronics
email:   trungdo at patton.com
Cell Phone: +84.12.1981.0108
Ofc.   +848 6290 6264  Ext. 224
Fax.   +848 3827 2688
sky:     trungdo.tien
MSN:   trungdo.tien at hotmail.com
website: www.patton.com








On 8/19/09 12:38 PM, "Ayyanar PK" <pkayyanar at in.com> wrote:

> he traces were captured from both the calling and called end

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