Is there a limit to how many contacts i can input? There is a limit to how many you can input in each field and this limit is based on the size of the contacts rather than the actual number of contacts in the field. The size cannot exceed 29 KB.What is the size of the picture in contacts? The height of the picture must be at least 960 pixels, and the width at least 640 pixels. The picture can be resized in Contacts with the slider without consequences on the full screen display, but be aware that if you move it within the frame the actual size can change and thus reduce a dimension below the required threshold.How should i format a telephone number in the nls api? The current implementation of NLS APIs and the .NET Framework do not provide any telephone-number formatting information. Knowing this, you should: Keep country codes, area codes, and phone numbers in separate fields. Do not expect a fixed number of digits for an area code or phone number. (A phone number can be anything between 4 to 11 digits.)How many contacts can i have in my distribution list? This limit applies when the members of the distribution list are selected from your Contacts folder and entered as full email addresses. If you use the basic information for contacts such as their name and email address, then your list limit may be as large as 125 to 130 contacts.
The height can be anything, even one pixel. To test if it works without receiving a call, open the contact on the phone and tap its picture. If the picture opens in a larger form, then it will fill the screen when a call is received. This was tested on an iPhone 6, I cannot vouch for the required size on other models.