Def. Username field is incorrect HELP

Hi everyone
I have problem …
pbx*CLI> sip show peers
Name/username Host Dyn Forcerport Comedia ACL Port Status Description
221/448 192.168.10.21 D Yes Yes A 5060 OK (24 ms)
222/222 192.168.10.21 D Yes Yes A 5060 OK (25 ms)
223/448 192.168.10.104 D Yes Yes A 5060 OK (24 ms)
224/448 192.168.10.102 D Yes Yes A 5060 OK (23 ms)
225/225 192.168.10.25 D Yes Yes A 5060 OK (15 ms)
226/448 192.168.14.250 D Yes Yes A 5062 OK (31 ms)

Sometimes when i want to call for example from extension 200 to ext. 221 call is routed to ext. 221
It’s not always but often.
Can you help me ?

pbx*CLI> sip show peer 221

  • Name : 221
    Description :
    Secret :
    MD5Secret :
    Remote Secret:
    Context : from-internal
    Record On feature : automon
    Record Off feature : automon
    Subscr.Cont. :
    Language : sk
    Tonezone :
    AMA flags : Unknown
    Transfer mode: open
    CallingPres : Presentation Allowed, Not Screened
    Callgroup :
    Pickupgroup :
    Named Callgr :
    Nam. Pickupgr:
    MOH Suggest :
    Mailbox : [email protected]
    VM Extension : *97
    LastMsgsSent : 0/0
    Call limit : 2147483647
    Max forwards : 0
    Dynamic : Yes
    Callerid : "221 xxxx " <221>
    MaxCallBR : 384 kbps
    Expire : 148
    Insecure : no
    Force rport : Yes
    Symmetric RTP: Yes
    ACL : Yes
    DirectMedACL : No
    DirectMedia : No
    PromiscRedir : No
    User=Phone : No
    Video Support: No
    Text Support : No
    Ign SDP ver : No
    Trust RPID : Yes
    Send RPID : Yes
    Path support : No
    Path : N/A
    TrustIDOutbnd: Legacy
    Subscriptions: Yes
    Overlap dial : Yes
    DTMFmode : rfc2833
    Timer T1 : 500
    Timer B : 32000
    ToHost :
    Addr->IP : 192.168.10.21:5060
    Defaddr->IP : (null)
    Prim.Transp. : UDP
    Allowed.Trsp : UDP
    Def. Username: 448
    SIP Options : (none)
    Codecs : (ulaw|alaw|gsm|g729)
    Auto-Framing : No
    Status : OK (37 ms)
    Useragent : C610 IP/42.207.00.000.000
    Reg. Contact : sip:[email protected]:5060
    Qualify Freq : 60000 ms
    Keepalive : 0 ms
    Sess-Timers : Accept
    Sess-Refresh : uas
    Sess-Expires : 1800 secs
    Min-Sess : 90 secs
    RTP Engine : asterisk
    Parkinglot :
    Use Reason : No
    Encryption : No