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T.37 Fax via SIP interface

cannot map the fax number when i test the onramp function from router(CUBE). SIP interface to connect to PSTN (via PBX).

-x4630=FAX DID number

- IP address connected from router via SIP protocol

- server IP address

Advise please..



fax receive called-subscriber $d$

fax send transmitting-subscriber $s$

fax send left-header $s$

fax send center-header $t$

fax send right-header Page: $p$

fax send coverpage enable

fax send coverpage email-controllable

fax interface-type fax-mail

mta send server port 25

mta send subject "FAX receiving via CUBE"

mta send mail-from hostname

mta send mail-from username fax-user

mta receive aliases

mta receive maximum-recipients 10

mta receive generate permanent-error



service app_onramp flash:app_faxmail_onramp.


service app_offramp flash:app_faxmail_offramp.



dial-peer voice 500 voip

service app_onramp

session protocol sipv2

session target ipv4:

incoming called-number 4630

dtmf-relay rtp-nte

codec g711ulaw

ip qos dscp cs3 signaling

no vad


dial-peer voice 501 mmoip

service fax_on_vfc_onramp_app out-bound

destination-pattern 4630

information-type fax

session target


dsn success

dsn failure


dial-peer voice 502 mmoip

service app_offramp

information-type fax

incoming called-number 9T

dsn delayed

dsn success

dsn failure


fax onramp test


cube# 25

Trying, 25 ... Open

220 Cisco NetWorks ESMTP server


250-2.5.0 No EHLO/HELO was sent! Continuing,

250 2.5.0 Sender <> ok


553 5.1.1 <> no mapping (4630)

554 5.3.0 Internal error prevented operation; closing socket

[Connection to closed by foreign host]

debug fax mta all


*May 4 18:47:56.854: //-1/xxxxxxxxxxxx/SMTPS/esmtp_server_engine_command_rcpt:

CALL_ERROR; faxmail_server_tel_number_translate failed

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