Problems with Cisco VG224 and FreePBX

Hello good morning,

In another times I have used the Cisco VG224 gateways with FreePBX without problems but yesterday I found a problem.

The problem is that you cant define a username with less than 4 digits.

Example(VG224 config.):

voice call send-alert
voice rtp send-recv

voice service voip
allow-connections sip to sip
redirect ip2ip
fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback pass-through g711alaw
sip

voice-port 2/0
cptone ES
station-id name 100
station-id number 100
caller-id enable
!

voice-port 2/1
cptone ES
station-id name 4000
station-id number 4000
caller-id enable
!

dial-peer voice 200 pots
no service stcapp
destination-pattern 100
port 2/0
authentication username 100 password mipassword100
!
dial-peer voice 201 pots
no service stcapp
destination-pattern 4000
port 2/1
authentication username 4000 password mipassword4000

dial-peer voice 100 voip
destination-pattern 0.T
no modem passthrough
session protocol sipv2
session target ipv4:192.168.66.24:5060
session transport udp
dtmf-relay rtp-nte
codec g711alaw
fax-relay ecm disable
fax rate disable
fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback pass-through g711alaw
no vad
!

sip-ua
retry invite 1
retry response 3
retry bye 3
retry cancel 3
retry register 3
timers trying 1000
registrar ipv4:192.168.66.24:5060 expires 120
sip-server ipv4:192.168.66.24
!

In this example I can define a dial-peer for 4000 extension without problems but I cant define a dial-peer for 100 extension because the username is less than 4 digits.

Anyone knows if there is any solution to solve this so that I can use the actual extensions of 3 digits with my VG224 and FreePBX?