uc1.com - Thanks for posting your question on the forum!
Based on your configuration, you have two QoS policies applied to the PPP interface. The first QoS map entry is matching packets with a DSCP value of 46 or IP precedence value of 5 and giving it a priority over 80% of the available bandwidth when the link is in a congested state. The second QoS map entry is matching traffic defined in the ACL "aclVoIP21" and setting the DSCP value of 26.
You will not see any dropped packets unless the PPP link is in a congested state. In other words, traffic that has a DSCP value of 46 or IP precedence value of 5 will be put in a low latency queue that is prioritized above all other user traffic. If no other traffic is present, the queue is allowed to burst up to the interface rate. Otherwise, priority traffic above the specified priority value will be dropped.
More information can be found in the following guide: Configuring QoS in AOS
Please do not hesitate to let us know if you have any questions.
I went ahead and flagged the "Correct Answer" on this post to make it more visible and help other members of the community find solutions more easily. If you don't feel like the answer I marked was correct, feel free to come back to this post to unmark it and select another in its place with the applicable buttons. If you have any additional information on this that others may benefit from, please come back to this post to provide an update. If you still need assistance, we would be more than happy to continue working with you on this - just let us know in a reply.