B2B video, Jabber Guest, immersive telepresence endpoints, etc. that they were occasionally working into issues when dialing via SIP URI. It was found out that the entries in MS Active Directory might not have been regularly entered as lower case. Some may have been entered using camel case, and I suppose some may all be uppercase as well. When CUCM synchronized it’s users with Active Directory, those full instances were well known.

Per RFC 3261 (section 19.1.4, URI Comparison) comparison of the userinfo of SIP URIs needs to be case-sensitive. When routing directory site URIs, Unified CM respects this standard and searches for a case-sensitive full match of the user portion and a case-insensitive match of the sponsor portion. To avoid misunderstandings, Cisco highly suggests provisioning only directory URIs with all lowercase userinfo so that directory site URIs can reliably be dialed by entering all lowercase information. Unified CM 9.1 and later produces can be configured to always use case-insensitive assessment of the user-info portion of index URIs.

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This can be achieved by configuring the business parameter URI Lookup Policy accordingly. This setting applies to coordinating locally configured listing URIs and to matching index URIs for which an ILS lookup is done. The default environment of this business parameter defines standard compliant case-sensitive matching of an individual info portion of website directory URIs.

Unfortunately I can’t imagine anyone in the open assuming the same thing. With that, starting in version 9 there is a business parameter that will toggle how lookups are done. Navigate to System | Business Parameters and in the Business Parameters Configuration section, find URI Lookup Policy. Change the value to Case Insensitive and the problem is solved. This is not business impacting and no resets are required. This parameter specifies what sort of match is performed for the configured consumer part of the URIs in Cisco Unified Call Manager. If the parameter is defined to Case Sensitive, we will match the precise case sensitive URI configured in Cisco Unified CM. If the parameter is defined to Case Insensitive, then case insensitive lookup will be achieved.

They actually held the originals and sent Abe with the photocopies! Lesson Learned: Some developers today think that well-written code is its documentation. Does Macy’s Tell Gimbel’s? My first programming assignment was successful. After I had finished, Mr. Thayer told me a funny story. As noted previously, Gimbel’s division store was still across the street from Macy’s, and both were rivals.

In truth, “Does Macy’s tell Gimbel’s?” was, at the right time, a common stating indicating that rivals do not reveal business secrets with each other. Despite this extreme rivalry as merchants, Mr. Thayer and his peer at Gimbel’s experienced somehow were able to enter into a friendly competition whereby each of them would try to find vulnerabilities in the store processes of the other. To help your competition, Mr. Thayer experienced applied for and got received a Gimbel’s credit credit card. As a total result, Mr. Thayer had received, in the email, Gimbel’s exact carbon copy of “Holiday Money,” which he used to purchase some small item at Gimbel’s promptly.