Forum Discussion
3PIP Phones Teams SIP Gateway - PSTN Number
Hi,
We're currently investigating moving our 3PIP phones (Polycom VVX) which are logging in with a MS Teams Common Area Phone accounts. These phones are purely common area phones mostly their only purpose is to allow the emergency Services to be called, the majority are located in Student Halls - as such they currently don't have a phone number assigned to them - when dialling out the SBC (We're on Direct Routing) is configured to set the calling ID to our main reception number.
During testing it appears that in order to get these working on the SIP Gateway we have to assign a DDI number to each one.
Is anyone aware of anyway to get these working without giving each one a DDI number?
Thanks
According to Microsoft Docs, all device enabled via SIP Gateway must have DDI. CMIIW
https://learn.microsoft.com/en-us/microsoftteams/sip-gateway-plan
But, you can assign same base DDI to many users including common phone area. To differentiate one to the other, just add ;ext=XXXX. For example, 3 users can be assigned same base DDI +6221397123456 this way:
user 1 -> +622139712345;ext=1001
user 2 -> +622139712345;ext=1002
user 3 -> +622139712345;ext=1003
I am sure it is easy to change all callerid to SBC default DDI.
2 Replies
According to Microsoft Docs, all device enabled via SIP Gateway must have DDI. CMIIW
https://learn.microsoft.com/en-us/microsoftteams/sip-gateway-plan
But, you can assign same base DDI to many users including common phone area. To differentiate one to the other, just add ;ext=XXXX. For example, 3 users can be assigned same base DDI +6221397123456 this way:
user 1 -> +622139712345;ext=1001
user 2 -> +622139712345;ext=1002
user 3 -> +622139712345;ext=1003
I am sure it is easy to change all callerid to SBC default DDI.
Thanks godril_
I will give that a try.
Yes should it be easy enough to use a transformation rule on our SBC to change the CallerID - we currently use a transformation rule to transform the CallerID on our Non-DDI accounts from anonymous to our main number, so something similar for these should work.
Thanks
