What is h323 gateway VoIP interface?
h323-gateway voip interface >> GW to gatekeepr communication. – It is used to source RAS packets when communicating with a gatekeeper. h323-gateway bind srcaddr x.x.x.x >> GW to GW (CUCM) communication. – It is not needed when you confgure the gateway to communicate only with a gatekeeper.
Which of the following protocols is used for call set up in H 323?
H. 323 endpoints use the RAS protocol to communicate with a gatekeeper. Likewise, gatekeepers use RAS to communicate with other gatekeepers.
What is dial peer preference?
dial peer to set a priority, with preference 0 being the default and highest preference. Multiple dial peers can be defined with the same destination pattern with preference 1 , 2 , 3 , and so on.
What is digit Strip?
The digit-strip command is a dial-peer command that strips off the matched digits in a destination pattern of a dial peer. The digit-strip command is supported on plain old telephone service (POTS) dial peers only. Digit stripping occurs after the outbound dial peer is matched and before any digits are sent out.
How does dial peer work?
The POTS dial peer maps a dial string to a voice port on a local router or gateway. In most cases, POTS dial peers are used to connect a physical voice port to a PBX, a telephone, or the PSTN. VoIP a dial peers are used to define packet voice network attributes and map dial strings to a remote router or device.
What is a dial peer and why is it used?
Voice over IP dial peers includes VoIP capable computers, routers, and gateways in a network. POTS dial peers include traditional telephone devices such as phone sets, cell phones, and fax machines. Dial peers are used to configure dial plans and to identify call source and destination endpoints.
How does dial-peer work?
The POTS dial peer maps a dial string to a voice port on a local router or gateway. A dial peer is configured using the dial-peer voice tag {pots | vofr | voip} command. The tag is a number between 1 and 2147483647 that identifies an individual dial peer.
How to configure a H323 gateway for voice over IP?
A four-step procedure can then be followed to configure an H.323 gateway according to network requirements: Step 1. Enable H.323 VoIP services globally. Step 2. Configure an interface as an H.323 gateway. Step 3. Create a codec voice class and populate with a list of codecs in order of their preference.
Which is the specific interface to VoIP peers?
The VoIP SPI is the specific interface to the VoIP peers. Telephony/DSP drivers deliver services to the Telephony SPI while the VoIP SPI relies on session protocols. This diagram shows the architecture of Cisco router Telephony building blocks and how they interact with each other.
What to do when dial peer is not matched?
A dial-peer is not matched or the switch (CO or PBX) is not able to ring the correct station if incomplete or incorrect digits are sent or received. Some commands that can be used to verify the digits received/sent are: show dialplan number —This command is used to show which dial peer is reached when a particular telephone number is dialed.
How to debug the VPM telephony interface?
These commands are used to debug the VPM Telephony interface: debug vpm signal —This command is used to collect debug information for signaling events and can be useful in resolving problems with signaling to a PBX. debug vpm spi —This command traces how the voice port module service provider interface (SPI) interfaces with the call control API.