HMR to Remove Invalid B-Number
Dear Team,
Lot of calls with invalid B-Numbers from International carriers SBC i.e. number length for India destination is 12 digits (CC+ Number) and we are receiving nearly more than 5K to 90K calls/day with B-number
less than 12 digits towards our SBC which is transit to our Soft switch degrading the network performance and bandwidth.
We need to explore the option by applying HMR in sip manipulation.
Our major concern is to block the calls having less than 12 digits (completely numeric) as it comprises major part of invalid calls compared with other pattern like containing symbols & alpha-numeric.
We need to prepare this logic for B-number starting with +91.