New Comcast gateway breaks Caller ID

stratagydk · Mar 20, 2019

1. Customer Partner ACS system caller ID working normally (incoming call shows name/number, call log shows name/number)
2. Comcast replaces existing modem and gateway with new CBR-T all-in-one modem/telephony gateway/router/wifi.
3. Caller ID starts acting weird (incoming calls normal, call log shows name but NOT NUMBER)
4. Comcast says "don't blame us, we're obviously sending you name and number. Have a nice day"

Anybody see this before?/know a solution?

Dexman · Mar 20, 2019

I would first connect a standard SLT to the Comcast interface to verify that they are sending both name & number.

If they are, then, Comcast may or may not be able to make adjustments to resolve this.

The Partner and other legacy AT&T/Lucent/Avaya telephone systems were designed before alternate communication providers really came into being. As such, they are expecting to interface/interact with services that adhere tightly to Bellcore standards.

My guess is that the Caller ID signal from the Comcast unit deviates enough from Bellcore standards to throw the Partner ACS, but, still be workable with a consumer-grade SLT.

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New Comcast gateway breaks Caller ID

stratagydk

Vendor

Dexman

Technical User

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