I have read the ALTERNATE_NUMBER_DIALING.txt:
Using MULTI_LEAD allows you to use a separate lead for each number on a customer account that all share a common vendor_lead_code, and the type of phone number for each is defined with a label in the Owner field. This option will disable some options on the Modify Campaign screen and show a link to the Multi-Alt Settings page which allows you to set which phone number types, defined by the label of each lead, will be dialed and in what order. This will create a special lead filter and will alter the Rank field of all of the leads inside the lists set to this campaign in order to call them in the order you have specified.
That is OK.
This is the forum discussion that have more information about MULTI-LEAD:
http://www.eflo.net/VICIDIALforum/viewtopic.php?p=73932However it does not say anything about how to load list with MULTI_LEAD.
I have Vicibox 5.0.3 with:
1) Version of VICIDIAL: VERSION: 2.8-413a BUILD: 130928-1130
2) loadavg: load average: 0.11, 0.05, 0.06
3) Server Specs: Intel(R) Xeon(R) CPU E3-1220 V2 @ 3.10GHz with fout cores. 12 GBytes of RAM. 2 TBytes hard disk.
4) Codecs used: alaw
5) VOIP or PSTN : VOIP
6) OS: Linux cc1 3.7.10-1.16-pae #1 SMP Fri May 31 20:21:23 UTC 2013 (97c14ba) i686 i686 i386 GNU/Linux
Any help will be appreciate.