A customer is in the process of testing their SRTP to RTP inter-working configuration in their Cisco Unified Communications deployment that includes Cisco Unified Border Element. Users are experiencing no-way audio when a direct call inbound from the PSTN to an unencrypted phone is transferred to an encrypted phone.Which action resolves the issue?
Answer(s): C
When a call is transferred from an unencrypted phone to an encrypted phone, a midcall media change is required to renegotiate media from RTP to SRTP. On Cisco Unified Border Element, this interworking during supplementary services (such as call transfer) requires the supplementary-service media-renegotiate command. Without it, CUBE does not renegotiate the media stream, resulting in one-way or no-way audio.
Refer to the exhibit. A Collaboration engineer is implementing call routing and must configure the Cisco Unified Border Element to register to multiple registrars using a SIP trunk listen port. Which code snippet completes the configuration?
Answer(s): A
To register to multiple SIP registrars using a single SIP trunk listen port, Cisco Unified Border Element must use a connection-oriented transport. Configuring session transport tcp ensures that SIP signaling is multiplexed over the same listening port, which is required when registering to multiple registrars.
Refer to the exhibit. An engineer configured the Cisco Unified Border Elements to support video calls but encountered situations where either the video stream failed to initialize or the video quality was less than ideal.Which action resolves the issue?
Answer(s): B
Configuring early-offer forced renegotiate always under global voice service voip forces CUBE to send an initial SDP (early-offer) and then always renegotiate media (via re-INVITE) to ensure the final SDP accurately reflects the negotiated audio/video capabilities. This resolves cases where the video stream doesn't initialize or video quality is suboptimal due to incomplete or mismatched SDP during setup.
What are two configuration features of the Client Matter Code setting in the route pattern configuration? (Choose two.)
Answer(s): A,B
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/10_0_1/ccmfeat/ CUCM_BK_F3AC1C0F_00_cucm-features-services-guide-100/CUCM_BK_F3AC1C0F_00_cucm-features- services-guide-100_chapter_010000.pdf
A network engineer designs a new dial plan and wants to block a certain range of numbers (8135100 through 8135105). Which route pattern should be configured to block only the numbers in this range?
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