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Dialogic 6.2 User Manual

Page 221

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Managing Calls Using IP Telephony

November 2009

221

The following are valid dial string examples for a SIP channel.

Comments are shown in italics.

sip:Joe Smith<[email protected]>

SIP endpoint address.

sip:[email protected]

Endpoint gateway specified.

sip:[email protected]

Proxy explicitly specified.

Joe Smith<[email protected]>

SIP endpoint address.

[email protected]

Endpoint gateway specified.

[email protected]

Proxy explicitly specified.

800-555-1212

Will use default proxy server.

+1 (800) 555-1212

Will use default proxy server.

192.168.1.45

Valid, but not recommended.

[email protected]

Valid, but not recommended.

sip:somewhere.com

User part (left side of ‘@') is implied.

sip:[email protected]:9876

An explicit port specification.

sip:[email protected];user=phone

Specifies that user part is a phone number.

Using prefixed dial strings would have the same effect, as in:

fax –u 0 –s sip/t38://[email protected] foo.pkt

Using an alternative URI scheme:

fax -u 0 -s [email protected] foo.pkt

¾

initiates the following sequence of events:

1. Call Control processes the URI dial string, sends it to the SIP

protocol stack.

2. SIP stack places the SIP call to the Cisco XXXX Gateway.
3. The Cisco Gateway places the call on the PSTN, sending call

progress information to the SIP stack and then finally connecting

the call.

4. The fax is then sent and the call is torn down.

No SIP proxy or redirect server is required if not configured or

needed for point to point calls.

Again, using prefixed dial strings would have the same effect as in:

fax -u 0 -s sip://[email protected]
foo.pkt