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3rd party SIP phone loses traffic after INVITE

Question asked by Teo7810TSG6 on Mar 4, 2016
Latest reply on Mar 8, 2016 by Teo7810TSG6

Hi!  We are having a problem with our phones initiating a call.  They register with no problem, but when I try to make a call from them, the Cisco server ceases traffic.  It doesn't close the TCP connection, it just ceases traffic.

 

I noticed in the server settings that the phone is reported as not being "trusted."  Is there a setting to change to mark the phone as trusted?

 

Cisco server: 10.10.20.1

Teo SIP phone: 192.168.100.4

 

37 16.823472       192.168.100.4 10.10.20.1      SIP 685     Request: REGISTER sip:10.10.20.1:5060;transport=tcp (1 binding) |

40 17.004746 10.10.20.1      192.168.100.4 SIP     368     Status: 100 Trying |

42 17.005352       10.10.20.1 192.168.100.4   SIP 490     Status: 401 Unauthorized |

44 17.026869       192.168.100.4 10.10.20.1      SIP 887     Request: REGISTER sip:10.10.20.1:5060;transport=tcp (1 binding) |

48 17.250811 10.10.20.1      192.168.100.4 SIP     368     Status: 100 Trying |

49 17.252388 10.10.20.1      192.168.100.4 SIP     506     Status: 200 OK  (1 binding) |

50 17.253516 10.10.20.1      192.168.100.4 SIP     594     Request: NOTIFY sip:1090@192.168.100.4:5060;transport=tcp |

52 17.353075       192.168.100.4 10.10.20.1      SIP 694     Status: 200 OK |

198 83.101543       192.168.100.4 10.10.20.1      SIP/SDP 1221 Request: INVITE sip:1094@10.10.20.1:5060;user=phone |

202 83.287388 10.10.20.1      192.168.100.4 SIP     392     Status: 100 Trying |

203 83.287671 10.10.20.1      192.168.100.4 SIP     539     Status: 401 Unauthorized |

205 83.303909       192.168.100.4 10.10.20.1      SIP 396     Request: ACK sip:1094@10.10.20.1:5060;user=phone |

206 83.315357       192.168.100.4 10.10.20.1      SIP/SDP 1425 Request: INVITE sip:1094@10.10.20.1:5060;user=phone |

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