<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
On 23-Sep-11 09:08, Mark R Lindsey wrote:
<blockquote
cite="mid:115637CB-9F68-4BE0-99D2-40D7B21E0A4B@e-c-group.com"
type="cite">
<div>Normally, the SIP endpoint that device that collects digits
is responsible for knowing when a correct and complete number
pattern has been dialed. The same is true for MGCP devices when
configured to match a digitmap; they only send off the NTFY
when a pattern of digits has been dialed, or else a timeout has
occurred.</div>
<div><br>
</div>
<div>I'm almost certain that there is no way in the Cisco
7940/7960 SIP firmware to override this norm. You probably need
to configure the digit map in the phone to match the digit map
from your <i>switch</i>.</div>
</blockquote>
<br>
That's the normal expectation. However, if the client and server
correctly implement the 484 (Address Incomplete) error code, that is
not required. Here's how it <i>should</i> work:<br>
<br>
1. User dials "9"<br>
2. Client sends INVITE for <a class="moz-txt-link-freetext" href="sip:9@server">sip:9@server</a> (or <a class="moz-txt-link-freetext" href="tel:9">tel:9</a>)<br>
3. Server responds with 484<br>
4. Client waits for more digits<br>
5. User dials "1"<br>
6. Client sends INVITE for <a class="moz-txt-link-freetext" href="sip:91@server">sip:91@server</a> (or <a class="moz-txt-link-freetext" href="tel:91">tel:91</a>)<br>
7. Server responds with 484<br>
8. Client waits for more digits<br>
9. User dials "1"<br>
10. Client sends INVITE for <a class="moz-txt-link-freetext" href="sip:911@server">sip:911@server</a> (or <a class="moz-txt-link-freetext" href="tel:911">tel:911</a>)<br>
11. Server completes call normally<br>
<br>
I have no idea whether the Cisco 79xx code does this, but it should
be relatively easy to test if your server is known to support it:
just give the phone a digit map that accepts any single digit and
see what happens.<br>
<br>
S<br>
<br>
<pre class="moz-signature" cols="72">--
Stephen Sprunk "God does not play dice." --Albert Einstein
CCIE #3723 "God is an inveterate gambler, and He throws the
K5SSS dice at every possible opportunity." --Stephen Hawking
</pre>
</body>
</html>