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Cisco ISDN GW 3241 Installation Best Practice

dana.tong
Level 4
Level 4

Good day all,

I know that the ISDN GW 3241 is EOL and that the preference would be to use B2B IP calling.

However I have a customer that has a requirement for VC with both ISDN and IP capabilities, and they have acquired two new ISDN 3241's with two PRI's each. (They also have an Expressway C&E cluster for IP calls).

I've searched everywhere for a installation / configuration / deployment guide but have so far come up short (aside from the basic Quick Start Guide).

What is the Best Practice now for integrating these ISDN GW's with CUCM? Would it be a SIP trunk? Or H323 registered Gateway?  (It's also not in the Collab CVD / or PA). Everything else in this environment will be SIP trunk where possible.

Cheers

Dana

1 Reply 1

SIP trunk is the best practice.  From memory I think you also need to set the preferred DTMF on the SIp trunk to RFC 2833.