Archive for the ‘Route Patterns and Dial-peers’ Category
Basic Configuration of Dial-Peers
Dial-Peer Requirements
If Voice-Network (VoIP, VoFR, VoATM) and POTS dial-peers are not valid and in the "operational status", they are not considered for the Cisco IOS router/gateway inbound and outbound dial-peer matching process. In order to be considered valid/operational, dial-peers must meet one of these criteria:
- Destination-pattern and a voice-port or session target is configured.
- Incoming called-number is configured.
- Answer-address is configured.
SIP-based Dial-Peer to CUCM
dial-peer voice 50 voip
destination-pattern 5…
session target ipv4:10.10.210.11
preference 10
voice-class codec 1
voice-class sip 1
no vad
dtmt-relay rtp-nte
translation-profile outgoing E164-ANI
POTs Dial-Peer to T1 PRI on Serial 0/0/0:23
dial-peer voice 60 pots
destination-pattern 9[2-9]..[2-9]……
port 0/0/0:23
no vad
preference 10
dtmf-relay h245-alphanumeric
translation-profile outgoing E164-ANI
prefix 0
Validate Dial-Peers
In order to check the validity of the dial peer configuration, use the Cisco IOS command show dial-peer voice summary. You can also perform debugging while sending calls out the gateway using debug voice dialpeer.
ISDN Overlap Receiving
Overlap receiving allows the matching of dial peers as the digits are being entered. I’m not aware of the benefits of ISDN overlap receiving, but it does exist and we need to be prepared for it on the voice lab. Without overlap receiving, digits presented to available dial peers are sent en bloc, meaning that 5123 is analyzed as “5123″ and not “5″ … “1″ … “2″ … “3″
CCIE Voice Lab Exam v3.0 Topics
The blueprint is a detailed outline of the topics likely to appear on the lab exam. This blueprint introduces pre-configurations of basic tasks (such as phone registration, basic application integration, basic dial plan, etc.), in order to devote additional focus on expert level skills (advanced configuration and troubleshooting) assessments. As usual, knowledge of troubleshooting is an important skill and candidates are expected to diagnose and solve issues as part of the CCIE lab exam. The topics listed are guidelines and other relevant or related topics may also appear.
