NS700, two phones can't call one outside number

[Justin RSU34]

This makes no sense. Two of our phones on a particular NS700 PBX can't call a local outside business. Nothing on the PBX has been changed or modified in any way that would cause this. Any thoughts on what might be causing this, and how we can fix it? Thanks,

 

[martincom]

Had they ever been able to? Who/what are utilizing for outside carrier? Toll restriction? Class of Service?

 

[Justin RSU34]

Had they ever been able to? Who/what are utilizing for outside carrier? Toll restriction? Class of Service?

Yup, they've been fine for years. I don't think the settings have been edited for years either. We have to dial 9 to get an outside line, but there's no toll restriction or CoS special settings at all. No line faults either.

 

[txteck]

The carrier you are using can set up a trace call on your service and see what digits are going out. Have to set up a trouble ticket and make a test call while there overlooking the call. Would be my next step

 

[martincom]

Swap the phones with known good and see if the problem follows the phones or the ports. What type of phones, IP, digital 2-wire, analog/digital 4 wire, or plain old telephone (POT)s?

 

[brucertek]

Had similar incident with security company added cameras with same ip address.

 

[Justin RSU34]

Swap the phones with known good and see if the problem follows the phones or the ports. What type of phones, IP, digital 2-wire, analog/digital 4 wire, or plain old telephone (POT)s?

They're Panasonic VOIP phones, PoE.

 

[Justin RSU34]

Had similar incident with security company added cameras with same ip address.

Looking in Meraki, I only see these phones with those unique IPs. If there was a conflict, we'd see the cameras too. Great idea though, I'll keep an eye out for that in the future.