Configuring Voice
Configuring Voice Services
Cisco SRP500 Series Services Ready Platforms Administration Guide (SRP520 Models)
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Registering to the Service Provider
To use an Internet phone service, you must register your SRP to the Internet
Telephony Service Provider (ITSP).
NOTE
Each line tab must be configured separately. Each line tab can be configured for a
different ITSP.
STEP 1
Log in to the Configuration Utility. If prompted, enter the administrative logon
provided by the Service Provider. The default username and password are both
admin
.
STEP 2
Under the Voice menu, click the
Line
(Line 1-2) to choose the line interface that you
want to modify.
STEP 3
In the Proxy and Registration section, enter the Proxy.
STEP 4
In the Subscriber Information section, enter the User ID and Password.
SIP Over TLS
The SRP allows the use of SIP over Transport
Layer Security (TLS). SIP over TLS is designed to
eliminate the possibility of malicious activity by
encrypting the SIP messages between the
service provider and the end user. SIP over TLS
relies on the widely-deployed and standardized
TLS protocol. SIP Over TLS encrypts only the
signaling messages and not the media. A
separate secure protocol such as Secure Real-
Time Transport Protocol (SRTP) can be used to
encrypt voice packets. SIP over TLS is configured
in the SIP Transport parameter configured in the
Line pages. See
Line Pages (1–2), page 156
.
Feature
Description