Given this H.323 gateway configuration and using Cisco best practices, how must the called party transformation pattern be configured to ensure that a proper ISDN type of number is set? A. B. C. D.
CUCM help page about the Route Pattern configuration says:
1) "Cisco recommends that you do not change the default value unless you have advanced experience with dialing plans such as NANP or the European dialing plan".
Default settings for Called Party Number Type and Called Party Numbering Plan are Cisco CallManager and I have many customers using such settings for international calls.
2) Called Party Number Type: "International—Use when you are dialing outside the dialing plan for your country."
3) Called Party Numbering Plan:"ISDN—Use when you are dialing outside the dialing plan for your country. "
1 and 2+3 seem to conflict. What are Cisco best practices, exactly?
Correct A because they are not using an internally globalized numbering plan. By document Called Party Number - International—Use when you are dialing outside the dialing plan for your country. and Called Party Numbering Plan - ISDN—Use when you are dialing outside the dialing plan for your country. https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/10_0_1/ccmcfg/CUCM_BK_C95ABA82_00_admin-guide-100/CUCM_BK_C95ABA82_00_admin-guide-100_chapter_0110010.html
I would also say A, based on the below link:
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/10_0_1/ccmcfg/CUCM_BK_C95ABA82_00_admin-guide-100/CUCM_BK_C95ABA82_00_admin-guide-100_chapter_0110010.html
Notice these two statements:
"Called party number type: International—Use when you are dialing outside the dialing plan for your country."
"Called party numbering plan: ISDN—Use when you are dialing outside the dialing plan for your country".
The route pattern and the dial peer show that we are dialing outside of the country's dial plan, thus choosing option (A)
I would say A.
https://blog.ine.com/2010/01/11/building-global-dial-plans-in-cucm7-part-iii-mapping-global-calling-party-numbers-to-their-local-variant
Correct is Answer A
All Called Party Transformation Pattern hits dialpeer with destination 9011
Diffrence is signaled called Party Number Type + Plan
H323 Protocol and translation-rule are not here relevant.
But in this example a POTS Dial-Peer hits a T1 PRI, where we have to signal for calling and called number a ISDN Type + Plan
I have customers, where we send it >unknown< (matchs Answer C, not explicit signaled).
By Answer C, we assume on diffrent ITSP requirements, that ITSP is aware of missing ISDN signaling and simply checks signaled number.
But This exam question is way to old, when we discuss H323 and ISDN in 2022, so ia ssume, it have to be signaled, like this is otherwise a missing signaling to ITSP and an error.
But; ISDN—Use when you are dialing outside the dialing plan for your country, for Called and Calling Party Numbering Plan.
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/9_1_1/ccmcfg/CUCM_BK_A34970C5_00_admin-guide-91/CUCM_BK_A34970C5_00_admin-guide-91_chapter_0110001.html
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