Before Call:

 sip show peer 3001


  * Name       : 3001
  Realtime peer: Yes, cached
  Secret       : <Set>
  MD5Secret    : <Not set>
  Remote Secret: <Not set>
  Context      : DLPN_All
  Subscr.Cont. : <Not set>
  Language     :
  AMA flags    : Unknown
  Transfer mode: open
  CallingPres  : Presentation Allowed, Not Screened
  Callgroup    : 1
  Pickupgroup  :
  MOH Suggest  :
  Mailbox      : 3001
  VM Extension : asterisk
  LastMsgsSent : 32767/65535
  Call limit   : 2147483647
  Max forwards : 0
  Dynamic      : Yes
  Callerid     : "" <>
  MaxCallBR    : 1024 kbps
  Expire       : 79
  Insecure     : no
  Force rport  : Yes
  ACL          : No
  DirectMedACL : No
  T.38 support : Yes
  T.38 EC mode : FEC
  T.38 MaxDtgrm: -1
  DirectMedia  : Yes
  PromiscRedir : No
  User=Phone   : No
  Video Support: Yes
  Text Support : No
  Ign SDP ver  : No
  Trust RPID   : Yes
  Send RPID    : Yes
  Subscriptions: Yes
  Overlap dial : No
  DTMFmode     : rfc2833
  Timer T1     : 500
  Timer B      : 32000
  ToHost       :
  Addr->IP     : 195.59.152.66:17261
  Defaddr->IP  : (null)
  Prim.Transp. : UDP
  Allowed.Trsp : UDP
  Def. Username: 3001
  SIP Options  : (none)
  Codecs       : 0xc (ulaw|alaw)
  Codec Order  : (ulaw:20,alaw:20)
  Auto-Framing :  No
  100 on REG   : No
  Status       : OK (39 ms)
  Useragent    : PolycomSoundPointIP-SPIP_550-UA/3.3.1.0769
  Reg. Contact : sip:3001@192.168.1.231
  Qualify Freq : 60000 ms
  Sess-Timers  : Accept
  Sess-Refresh : uas
  Sess-Expires : 1800 secs
  Min-Sess     : 90 secs
  RTP Engine   : asterisk
  Parkinglot   :
  Use Reason   : No