I am trying to configure a IP Telephony Network with E1 PRI as MGCP Gateway to PSTN. We have DID enabled numbers, however few users who have the DID Numbers doesnt want their numbers to be directly displayed instead they would want the PRI Number to be displayed, is there a way to do this on the CCM?
No, External Phone Number Mask is basically to display the number of the complete number on the IP Phone, however, this will not give the PRI Number when I call to the PSTN. I have already tried this....
Actually, the External Phone Number mask SHOULD work for you. This is the only way to specify on a PER-USER basis what the calling party number is displayed as when the call goes out the gateway. Since the end users don't want their specifc number displayed, your mask will not contain any XXXX characters.
For example, let's say your user has an extension of 5555 and a DID of 555-555-5555 (Sorry, I don't know what numbering plan you're using, so this is NANP.) If you want the outside world to see 666-666-5555 instead, then the mask would be: 666666XXXX. If you want the outside world to see 555-555-5000, the mask would be: 5555555000.
In order for line-based External Phone Number Mask to work, there can be no Calling Party Transform Mask specified in any Route Lists that would be processed by the call. CPTM on a RL would take priority over line-based EPNM.
Also, you can watch what info is passing to/from the PSTN on an IOS gateway with the "debug isdn q931" command.
p.s. - What's the weather like over there today? It's -14C and sunny here.
Scroll down to "External Phone Number Mask". Enter here the number that you want to send to the PSTN. Then click on "update" at the top of the page. You have to repeat this same procedure for the other extensions configured for this IP Phone (if you want to send those numbers also to the PSTN).
Locate the route pattern that you are using for doing calls to the PSTN.
Scroll down to the "Calling Party Transformations" section.
- If you check the "Use Calling Party's External Phone Number Mask" checkbox, you will use the number that you configured in the "Directory Number Configuration" page as caller ID.
- If you uncheck that checkbox, then you can configure the "Calling Party Transform Mask". Just enter here a number like, as an example, 978858xxxx (callmanager will fill out the xxxx with phone's 4-digit extension).
Go to the "Calling Party Transformations" section.
"Use Calling Party's External Phone Number Mask" > if you set it to "on", you will use the number that you configured in the "Directory Number Configuration" page as caller ID. If you set it to "off", then you need to configure the "Calling Party Transform Mask" (next line on this same page). The setting that you use here will override the settings that you configured in the "Route Pattern Configuration" page.
You configure the "Calling Party Transform Mask" here in the same way as explained for the "Route Pattern Configuration" page.
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