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Hello, I'm in the VoIP field, and I am having an issue deciphering why I am not able to complete a call to voicemail. I have 2 phone systems tied together via a PRI, and I have a PRI for trunking to the outside world. ShoreTel is the VoIP system, and its also acting at the voicemail system for both Phone systems. Other system is a Tadiran TDM system. What is happening is, if I call from the outside world via cell phone or desk phone, into the ShoreTel and it then transfer to a Tadiran phone via the Tie PRI trunks, it rings 4 times, and instead of being transferred to the Voicemail on the ShoreTel, the call just ends. I have packet capture from the ShoreTel PRI that plugs into the Carrier, and a capture from the other ShoreTel PRI that plugs into the Tadiran. I see a lot of ICMP Destination Unreachable (Port Unreachable) messages, along with what look to be some UDP error messages. The 2 ShoreTel switches are on the same subnet, so there isn't any routing between them. I was hoping someone would be able to look at my captures and help me figure out what is going on. This is for a big college, and they would really like their voicemail working. Thank you

Hello, I'm in the VoIP field, and I am having an issue deciphering why I am not able to complete a call to voicemail. I have 2 phone systems tied together via a PRI, and I have a PRI for trunking to the outside world. ShoreTel is the VoIP system, and its also acting at the voicemail system for both Phone systems. Other system is a Tadiran TDM system. What is happening is, if I call from the outside world via cell phone or desk phone, into the ShoreTel and it then transfer to a Tadiran phone via the Tie PRI trunks, it rings 4 times, and instead of being transferred to the Voicemail on the ShoreTel, the call just ends. I have packet capture from the ShoreTel PRI that plugs into the Carrier, and a capture from the other ShoreTel PRI that plugs into the Tadiran. I see a lot of ICMP Destination Unreachable (Port Unreachable) messages, along with what look to be some UDP error messages. messages. I can ping back and forth between the switches. The 2 ShoreTel switches are on the same subnet, so there isn't any routing between them. I was hoping someone would be able to look at my captures and help me figure out what is going on. This is for a big college, and they would really like their voicemail working. Thank you

Hello, I'm in the VoIP field, and I am having an issue deciphering why I am not able to complete a call to voicemail. I have 2 phone systems tied together via a PRI, and I have a PRI for trunking to the outside world. ShoreTel is the VoIP system, and its also acting at the voicemail system for both Phone systems. Other system is a Tadiran TDM system. What is happening is, if I call from the outside world via cell phone or desk phone, into the ShoreTel and it then transfer to a Tadiran phone via the Tie PRI trunks, it rings 4 times, and instead of being transferred to the Voicemail on the ShoreTel, the call just ends. I have packet capture from the ShoreTel PRI that plugs into the Carrier, and a capture from the other ShoreTel PRI that plugs into the Tadiran. I see a lot of ICMP Destination Unreachable (Port Unreachable) messages, along with what look to be some UDP error messages. I can ping back and forth between the switches. The 2 ShoreTel switches are on the same subnet, so there isn't any routing between them. them, they are plugged into the same network switch, and I can ping back and forth between the 2 ShoreTel PRI Switches. I was hoping someone would be able to look at my captures and help me figure out what is going on. This is for a big college, and they would really like their voicemail working. Thank you

Hello, I'm in the VoIP field, and I am having an issue deciphering why I am not able to complete a call to voicemail. I have 2 phone systems tied together via a PRI, and I have a PRI for trunking to the outside world. ShoreTel is the VoIP system, and its also acting at the voicemail system for both Phone systems. Other system is a Tadiran TDM system. What is happening is, if I call from the outside world via cell phone or desk phone, into the ShoreTel and it then transfer to a Tadiran phone via the Tie PRI trunks, it rings 4 times, and instead of being transferred to the Voicemail on the ShoreTel, the call just ends. I have packet capture from the ShoreTel PRI that plugs into the Carrier, and a capture from the other ShoreTel PRI that plugs into the Tadiran. I see a lot of ICMP Destination Unreachable (Port Unreachable) messages, along with what look to be some UDP error messages. The 2 ShoreTel switches are on the same subnet, so there isn't any routing between them, they are plugged into the same network switch, and I can ping back and forth between the 2 ShoreTel PRI Switches. I was hoping someone would be able to look at my captures and help me figure out what is going on. This is for a big college, and they would really like their voicemail working. Thank you

Hello, I'm in the VoIP field, and I am having an issue deciphering why I am not able to complete a call to voicemail. I have 2 phone systems tied together via a PRI, and I have a PRI for trunking to the outside world. ShoreTel is the VoIP system, and its also acting at the voicemail system for both Phone systems. Other system is a Tadiran TDM system. What is happening is, if I call from the outside world via cell phone or desk phone, into the ShoreTel and it then transfer to a Tadiran phone via the Tie PRI trunks, it rings 4 times, and instead of being transferred to the Voicemail on the ShoreTel, the call just ends. I have packet capture from the ShoreTel PRI that plugs into the Carrier, and a capture from the other ShoreTel PRI that plugs into the Tadiran. I see a lot of ICMP Destination Unreachable (Port Unreachable) messages, along with what look to be some UDP error messages. The 2 ShoreTel switches are on the same subnet, so there isn't any routing between them, they are plugged into the same network switch, and I can ping back and forth between the 2 ShoreTel PRI Switches. I was hoping someone would be able to look at my captures and help me figure out what is going on. This is for a big college, and they would really like their voicemail working. Thank you

Hello, I'm in the VoIP field, and I am having an issue deciphering why I am not able to complete a call to voicemail. I have 2 phone systems tied together via a PRI, and I have a PRI for trunking to the outside world. ShoreTel is the VoIP system, and its also acting at the voicemail system for both Phone systems. Other system is a Tadiran TDM system. What is happening is, if I call from the outside world via cell phone or desk phone, into the ShoreTel and it then transfer to a Tadiran phone via the Tie PRI trunks, it rings 4 times, and instead of being transferred to the Voicemail on the ShoreTel, the call just ends. I have packet capture from the ShoreTel PRI that plugs into the Carrier, and a capture from the other ShoreTel PRI that plugs into the Tadiran. I see a lot of ICMP Destination Unreachable (Port Unreachable) messages, along with what look to be some UDP error messages. The 2 ShoreTel switches are on the same subnet, so there isn't any routing between them, they are plugged into the same network switch, and I can ping back and forth between the 2 ShoreTel PRI Switches. I was hoping someone would be able to look at my captures and help me figure out what is going on. This is for a big college, and they would really like their voicemail working. Thank you

Thank you everyone. Sindy, here are 2 links to the captures. First link is a Capture from the ShoreTel PRI switch that is connected to the carriers circuit, and the second link is a capture from the ShoreTel PRI switch that is connected to the Tadiran phone system. https://www.cloudshark.org/captures/5ef479b4ee13 https://www.cloudshark.org/captures/6afb80054359